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AOU生态 · 抵押借贷

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名词解释 · 操作指南 · 规则说明 · 常见问题

版本：v2.0 | 更新日期：2026年4月

目录

一、名词解释

二、产品概述与核心参数

三、快速入门指南

四、借款操作详解

五、抵押管理

六、还款与借贷管理

七、存入与提取

八、风控与清算机制

九、预警与通知机制

十、费用说明

十一、价格数据来源

十二、安全与授权

十三、常见问题 (FAQ)

十四、相关法律协议

一、名词解释

以下是您在使用 AOU 抵押借贷产品时会遇到的核心术语。建议您在开始借贷前仔细阅读。

术语	解释
抵押借贷	用户将加密资产作为抵押品锁定在智能合约中，从而借出另一种加密资产。不需要信用审查，但需提供超额抵押品。
抵押物	您锁定在合约中用来担保借款的加密资产。借款期间无法使用或转账，直到全额还清借款。本平台仅支持单币种抵押，即每笔借贷只能使用一种币作为抵押物。
抵押率 (LTV)	借款金额与抵押资产价值的比例。计算公式：抵押率 = (借款金额 + 累计利息) ÷ 抵押资产当前市值 × 100%。抵押率越低越安全。
初始抵押率	系统默认的借款抵押率为 78%。即您借 100 USDT 时，系统默认要求您提供约 128.2 USDT 等值的抵押物。
最大抵押率	允许的最高借款比例为 85%。即您最多可借抵押资产价值的 85%。超过此比例无法借款。
清算抵押率	当抵押率达到或超过 91% 时，系统将自动触发强制卖出抵押物。
可借额度	基于抵押资产价值计算的最大可借款金额。最高 = 抵押资产价值 × 85%。最低借款金额为等值 100 USDT。
清算（强制卖出抵押物）	抵押率 ≥ 91% 时，系统自动卖出抵押物用以偿还全部债务。扣除本金、利息及清算费用后，剩余资产将进入平台风险准备金账户。
平台风险准备金	平台设立的专项基金，用于覆盖极端行情下抵押资产不足以偿还全部债务（穿仓）时的损失，保障平台借贷系统的正常运转。
清算价格	抵押资产跌至此价格时触发清算。请始终关注清算价格与当前市价的差距。
借贷订单	一笔借贷的完整记录，包括抵押资产、借款金额、利息、抵押率等。每次借款创建一个独立借贷订单。
健康状态	系统对借贷风险的评估。分四级：安全（0%-70%）、关注（71%-80%）、高风险（81%-90%）、触发清算（≥91%）。
账户权益	当前账户的实际权益，等于抵押资产与可用余额之和，扣除借款及已产生利息后所得。公式：账户权益 = 抵押资产 + 可用余额 - 借款金额 - 累计利息。随市场价格实时变化。
可用余额	当前可自由使用的资金，可随时提现或交易。借贷获得的资金将计入可用余额。
小时利率	每小时计算一次的利息率。不足 1 小时按 1 小时计。利息自动累加到借款总额。
年化利率 (APR)	小时利率折算为全年名义利率。利息按单利方式计算，不会产生复利。APR 为参考值，实际利息以链上智能合约逐小时计算结果为准。
智能合约	部署在区块链上的自动执行程序。抵押品和借贷逻辑由合约管理，无需信任第三方。
网络费 (Gas)	链上交易的矿工手续费，由区块链网络收取，非平台费用。
授权请求 (Approve)	允许智能合约在指定额度内操作代币的标准安全机制。不会直接转走您的资产。
主网类型	资产所在的区块链网络。本服务当前部署在 Arbitrum (ARB) 链上，所有借出资产均为 Arbitrum 链上对应资产。
追加抵押	在已有借贷订单上增加抵押物，以降低抵押率、降低清算风险。
移除抵押	从借贷订单中取回部分抵押物。会提高抵押率，增加清算风险。
全额还款	全额偿还借款本金和利息，取回全部抵押品，终止借贷。
赎回	全额还款后，从智能合约中取回您的抵押资产的操作。全额清偿借款本金和利息后，系统自动解锁并归还抵押品。
还款优先级	部分还款时，系统优先扣除利息，剩余部分再抵扣借款本金。

提示： 建议收藏本页，操作中随时查阅不熟悉的术语。

二、产品概述与核心参数

2.1 什么是 AOU 抵押借贷

AOU 抵押借贷是基于智能合约的去中心化借贷协议。您可以抵押加密资产借出其他加密资产，无需信用审查，无需 KYC，所有操作透明可查。本产品为活期借贷，无固定期限，无逾期概念，您可以随时还款。当累计利息导致抵押率达到清算阈值 (91%) 时，系统将自动清算。

2.2 核心参数一览

参数	数值	说明
初始抵押率	78%	系统默认借款比例
最大抵押率	85%	允许的最高借款比例
清算抵押率	91%	触发强制卖出抵押物的阈值
最低借款金额	等值 100 USDT	低于此金额无法借款
计息方式	按小时计息	不足 1 小时按 1 小时计
借款期限	无固定期限	活期借贷，随时还款
还款优先级	先息后本	部分还款优先扣除利息
抵押模式	单币种抵押	每笔借贷仅支持一种抵押币
支持网络	Arbitrum (ARB)	当前仅支持 Arbitrum 链
支持币种	以应用内显示为准	持续更新中

2.3 抵押率计算示例

假设您抵押了价值 10,000 USDT 的 ETH：

• 按初始抵押率 78%：系统默认您可借 7,800 USDT
• 按最大抵押率 85%：您最多可借 8,500 USDT（但清算风险极高）
• 建议抵押率：保持在 65% 以下，即借款不超过 6,500 USDT，留出安全边际

重要： 抵押率会因市场价格波动和利息累计而变化。即使您不操作，抵押率也可能升高至清算线。

三、快速入门指南

第一次使用 AOU 抵押借贷的完整步骤：

1. 打开任意支持的钱包，访问 AOU 生态 DApp，点击「抵押借贷」。
2. 点击「选择借款资产」，选择您想借的币种。
3. 输入借款金额（最低等值 100 USDT）。
4. 选择抵押物币种，系统自动计算所需抵押数量。
5. 确认抵押物数量和支付账户。
6. 查看确认页参数：抵押率、利率、清算价格等。
7. 点击「确认借款」，完成授权后借款即时到账。

新手建议： 第一次借款建议小额尝试。建议抵押率保持在 65% 以下，留出充足安全边际。

四、借款操作详解

4.1 选择借款币种

借贷首页展示所有可借币种及对应小时利率。点击币种卡片进入借款页面，默认显示该币种。点击首页 Banner 进入默认显示 USDT。

4.2 借款金额与限制

在「我想要借」字段输入金额。系统会校验以下规则：

• 最低借款金额：等值 100 USDT，低于此金额无法提交
• 最高借款金额：受您抵押资产价值× 85% 和平台池子剩余可借量共同限制
• 单币种借款上限：每个币种有独立的平台借款上限，以页面显示为准

4.3 选择抵押物

本平台仅支持单币种抵押，即每个借贷订单只能使用一种币作为抵押物。如果您希望用不同币种抵押，可以创建多个独立的借贷订单。

抵押物数量计算规则：

• 默认值：抵押代币总价值 = 借款总价值 ÷ 0.78（初始抵押率）
• 最小抵押量：借款总价值 ÷ 0.85（最大抵押率）
• 最大抵押量：借款总价值 ÷ 0.1（抵押率最低 10%）

4.4 借款确认

确认页显示：借款金额、抵押资产及价值、借后抵押率、年化利率、预估每小时利息、清算价格。请仔细核对后再点击「确认借款」。

重要： 借款后利息立即按小时累计。无固定期限、无逾期概念，但利息持续累加会推高抵押率，当达到 91% 时触发清算。

五、抵押管理

5.1 追加抵押

当抵押率升高时，可追加抵押物降低风险。在借贷详情 > 抵押管理 > 增加抵押，输入数量即可。系统实时显示追加后预估抵押率和清算价格。

5.2 移除抵押

在抵押管理页切换到「移除抵押」，输入取回数量。系统显示移除后抵押率变化。

警告： 移除抵押会提高抵押率。请确保移除后抵押率仍在安全范围内。

六、还款与借贷管理

6.1 还款优先级规则

部分还款时，系统优先扣除累计利息，剩余部分再抵扣借款本金。例如：您借了 1,000 USDT，累计利息 50 USDT，当您还 200 USDT 时，先扣除 50 USDT 利息，剩余 150 USDT 抵扣本金，还剩本金 850 USDT。

6.2 借入更多

在借贷管理页点击「借入更多」，输入额外金额。系统显示借款后预估抵押率和清算价格。

注意： 借款更多会提高抵押率。请确保有足够抵押品支撑新借款。

6.3 偿还借款

您可随时部分或全额还款。点击「偿还借款」，使用快捷比例按钮 (25%/50%/75%/100%) 或手动输入金额。还款后抵押率立即下降。全额还款后抵押资产自动释放。

6.4 全额还款

全额还款会一次性清偿全部借款。确认页面将显示：返还抵押资产数量、清偿债务金额、应付利息和当前抵押率。操作前请确保可用余额足以支付全部债务（本金 + 利息）。

七、存入与提取

7.1 存入资产

1. 点击「存入」，输入金额和币种。
2. 选择支付钱包和账户。
3. 确认交易，等待链上确认。

首次存入： 系统部署专属智能合约，需支付额外网络费 (BNB)，请确保钱包有足够 BNB。

7.2 提取资产

1. 点击「提取」，选择币种和网络。
2. 输入金额（不超过可提取余额）。
3. 选择收款钱包账户。
4. 确认交易，输入交易密码。

提取时扣除网络费，实际到账 = 提取金额 - 网络费。预计到账约 5 分钟。

八、风控与清算机制

8.1 健康状态说明

状态	抵押率范围	建议操作
安全	0% - 70%	状态健康，无需操作。定期关注行情即可。
关注	71% - 80%	风险升高，建议追加抵押或部分还款。
高风险	81% - 90%	极高风险！请立即追加抵押或还款。

8.2 清算流程

当抵押率 ≥ 91% 时（包括因利息累计导致），系统自动执行：

1. 自动卖出您的抵押资产。
2. 偿还借款本金。
3. 扣除累计利息。
4. 扣除清算费用（借款金额的 2%）。
5. 扣除清算费用后的剩余资产将进入平台风险准备金账户。

警告： 清算不可逆。清算后扣除借款本金、利息及清算费用，剩余资产将进入平台风险准备金账户。在极端行情下，抵押资产可能不足以覆盖全部债务，资产将全部用于偿还。

8.3 如何避免清算

• 保持抵押率在 65% 以下，留出充足缓冲。
• 开启 DApp 推送通知，及时接收风险预警。
• 市场波动时及时追加抵押或部分还款。
• 不要借到最高额度 (85%)，让抵押率远离清算线。
• 定期查看借贷状态状态，特别是行情波动较大时。

九、预警与通知机制

AOU 平台提供完善的风险预警系统，帮助您及时了解借贷风险状态并采取操作。

9.1 预警触发条件

预警等级	触发条件	通知方式
关注（黄色）	抵押率达到 70%	平台推送消息
高风险（红色）	抵押率达到 80%	平台推送消息 + 页面强提示
紧急警告	抵押率达到 85%	平台推送消息 + 页面强提示
清算执行	抵押率 ≥ 91%	系统自动清算 + 推送通知

9.2 通知方式

目前平台通过 推送消息的方式发送风险预警。请确保您在钱包或浏览器中开启了 AOU DApp 的通知权限，以免错过重要预警。

免责声明： 通知仅作风险提示，平台无法保证通知及时送达。受网络状况、钱包设置、系统限制等因素影响，可能存在延迟或未能接收的情况。用户应主动关注借贷状态，不应完全依赖推送通知。

十、费用说明

费用类型	说明	比例/金额	收取方
借款利息	按小时计息，累加到借款总额	见币种利率页面	平台
网络费 (Gas)	每笔链上交易的矿工费	动态变化	区块链网络
合约部署费	首次存入时部署智能合约	一次性	区块链网络
清算费用	触发清算时从抵押资产扣除	借款金额的 2%	平台

说明： 借款利率可能根据市场供需和平台策略进行调整，具体利率以借款页面实时显示为准。

十一、价格数据来源

AOU 抵押借贷产品中涉及的所有资产价格（包括抵押率计算、清算价格判定、可借额度计算等）均来源于第三方去中心化价格预言机（Oracle）。

11.1 什么是价格预言机

价格预言机是将链下的市场价格数据传输到链上智能合约的基础设施。它从多个主流交易所聘合价格，避免单一交易所价格操纵对用户造成影响。

11.2 价格更新机制

• 平台使用去中心化预言机提供的聚合价格，从多个主流交易所获取加权均价。
• 价格数据实时更新，确保抵押率和清算价格的准确性。
• 在极端市场条件下，价格预言机可能存在短暂延迟，但不会影响清算判定的公平性。

透明度： 预言机合约地址公开可查，您可以在区块链浏览器上独立验证价格数据。

十二、安全与授权

12.1 智能合约安全

您的抵押资产由部署在 Arbitrum (ARB) 链上的智能合约管理，合约代码公开可查。平台无法任意动用您的资产，所有操作需钱包签名确认。

12.2 授权机制

首次使用某种代币时，需授权智能合约操作该代币（ERC-20 Approve）。这是区块链标准安全机制，不会直接转走资产，可随时在钱包中撤销。

12.3 交易密码

提取资产时需输入交易密码，用于确认资产转出。请妥善保管，不要向任何人透露。

12.4 网络选择安全

重要： 存入和提取时请确保选择正确的主网类型。向错误网络发送资产可能导致永久丢失。

十三、常见问题 (FAQ)

借款类

Q: 我最多能借多少？

A: 最多可借抵押资产价值的 85%。例如抵押价值 10,000 USDT 的 ETH，最多可借 8,500 USDT。系统默认按初始抵押率 78% 计算，建议不要借到最高额度。

Q: 借款有期限吗？会逾期吗？

A: 没有固定期限，也没有逾期概念。这是活期借贷，您可随时还款。但利息会持续累计，当累计利息导致抵押率达到 91% 时，系统会自动清算。请定期关注抵押率变化。

Q: 为什么可借额度显示为 0？

A: 可能原因：1) 未存入资产；2) 资产已全部抵押；3) 平台该币种池子已借空；4) 网络连接异常。

Q: 借款到账需要多久？

A: 链上确认后即时到账，通常几分钟。网络拥堵时可能稍长。

抵押类

Q: 可以用多种币做抵押吗？

A: 不可以。本平台仅支持单币种抵押，每笔借贷只能用一种币作为抵押物。如需使用不同币种抵押，请创建多个独立借贷订单。

Q: 抵押期间资产在哪里？

A: 锁定在智能合约中，合约代码公开可查。全额还款后自动释放。

Q: 抵押率为什么会自动变化？

A: 两个因素：1) 抵押资产市场价格波动；2) 利息持续累计导致借款总额增加。即使不操作，抵押率也会变。

还款与清算类

Q: 被清算后资产怎么处理？

A: 清算后，系统从抵押资产中扣除借款本金、累计利息和清算费用（借款金额的 2%）。剩余资产将进入平台风险准备金账户。在极端行情下，抵押资产可能不足以覆盖全部债务，资产将全部用于偿还。

Q: 部分还款时怎么扣款？

A: 部分还款优先扣除利息，剩余部分再抵扣本金。例如借款 1,000 USDT、累计利息 50 USDT，还 200 USDT 时先扣 50 利息，剩余 150 抵扣本金。

Q: 还款时显示余额不足怎么办？

A: 请先存入足够的还款币种。注意还款金额包括本金和累计利息。

账户与操作类

Q: 账户权益和可用余额有什么区别？

A: 账户权益 = 抵押资产 + 可用余额 - 借款金额 - 累计利息，反映账户实际净值。可用余额是您可自由使用的资金，借贷获得的资金也会计入可用余额。

Q: 授权请求安全吗？

A: 安全的。授权是区块链标准机制，不会直接转走资产。可拒绝（但无法完成借贷），也可随时在钱包中撤销。

Q: 选错网络资产能找回吗？

A: 资产可能无法找回。请反复确认网络一致后再操作。如遇此情况请立即联系客服。

Q: 平台价格数据从哪里来？

A: 所有价格数据来源于第三方去中心化价格预言机，从多个主流交易所聚合加权均价，确保价格公正透明。预言机合约地址公开可查。

利息与费用类

Q: 利息怎么计算？

A: 每小时计息一次，公式：每小时利息 = (借款本金 + 已产生利息) × 当前小时利率。不足 1 小时按 1 小时计。利息自动累加到借款总额，影响抵押率。

Q: 清算费是多少？

A: 清算费为借款金额的 2%，从抵押资产中直接扣除。

Q: 合约部署费是什么？

A: 首次存入时部署专属智能合约的一次性网络费，之后操作不再收取。

交易失败类

Q: 借款失败是怎么回事？

A: 借款失败可能由以下原因导致：1) 市场波动剧烈，实际成交价格与预估价格偏离超过滑点保护阈值；2) 链上网络拥堵导致交易超时；3) Gas费不足导致交易被驳回。失败后您的抵押资产不会被扣除，可在历史记录中查看失败详情。

Q: 交易失败后我的资产安全吗？

A: 安全的。如果链上交易失败，所有操作将被回滚，您的抵押资产和借款状态不会发生变化。但已消耗的网络费（Gas）不会退还。

十四、相关法律协议

关于服务条款、风险披露及隐私政策的详细内容，请查阅平台独立发布的《抵押借贷服务主协议》《风险披露声明》《隐私协议》三份法律文件。使用本服务即表示您已阅读并同意上述全部协议。

如有任何问题，请通过 DApp 内反馈渠道或邮箱 support@aoulink.com 联系我们

AOU 生态团队 | v2.0

AOU Ecosystem

Collateralized Lending

Help Center

Glossary · How-To Guides · Rules · FAQ

Version 2.0 | April 2026

1. Glossary

Below are the key terms you will encounter when using the AOU collateralized lending service. We recommend reviewing them before you begin.

Term	Definition
Collateralized Lending	Lock crypto assets as collateral in a smart contract to borrow other crypto assets. No credit check required.
Collateral	The crypto asset you lock in the contract to secure your loan. It cannot be used or transferred until the loan is fully repaid. Only one asset type per Loan Order.
Loan-to-Value (LTV)	The ratio of your total debt (principal + interest) to the current market value of your collateral, shown as a percentage. Lower is safer.
Initial LTV	The system’s default borrowing ratio: 78%. For example, to borrow 100 USDT the system requires roughly 128 USDT worth of collateral.
Maximum LTV	The highest permitted ratio: 85%. You cannot borrow beyond this level.
Liquidation LTV	When LTV reaches or exceeds 91%, the system automatically sells your collateral.
Borrowing Limit	The maximum amount you can borrow based on your collateral value. Max = Collateral Value × 85%. Minimum loan: 100 USDT equivalent.
Liquidation	At LTV ≥ 91%, the smart contract automatically sells your collateral to repay all debt. After deducting principal, interest, and the liquidation fee, any remainder goes to the platform’s risk reserve.
Risk Reserve	A dedicated fund maintained by the platform to cover shortfalls when liquidated collateral is insufficient to repay the full debt.
Liquidation Price	The collateral price at which liquidation would be triggered. Keep a close eye on the gap between this and the current market price.
Loan Order	A complete record of a single loan: collateral, loan amount, interest, LTV, etc. Each loan creates a separate order.
Health Status	The system’s risk assessment of your loan. Four tiers: Safe (0–70%), Caution (71–80%), High Risk (81–90%), Liquidation (≥91%).
Account Equity	Your net worth on the platform: Collateral + Available Balance – Loan – Accrued Interest. Updates in real time with market prices.
Available Balance	Funds you can freely use—withdraw, trade, etc. Borrowed funds are added to this balance.
Hourly Rate	The interest rate applied each hour. Periods under one hour are rounded up. Interest is automatically added to your loan balance.
APR	The hourly rate expressed as an annualized figure for easy comparison. Interest is simple (non-compounding). APR is a reference; actual interest is calculated hourly by the smart contract.
Smart Contract	A self-executing program on the blockchain that manages your collateral and lending logic. No third-party trust required.
Gas Fee	A blockchain transaction fee paid to validators. This is a network fee, not a platform fee.
Approval (Authorize)	A standard blockchain security step that lets the smart contract operate a specific token within a set allowance. It does not transfer your assets.
Network	The blockchain your assets live on. This service is currently deployed on Arbitrum (ARB). All borrowed assets are Arbitrum-native.
Top Up Collateral	Add more collateral to an existing Loan Order to lower your LTV and reduce liquidation risk.
Remove Collateral	Withdraw some collateral from a Loan Order. This raises your LTV and increases liquidation risk.
Full Repayment	Repay the entire loan (principal + interest). All collateral is automatically released.
Redemption	The return of your collateral from the smart contract after full repayment.
Repayment Priority	Partial repayments are applied to interest first, then principal.

2. Product Overview

2.1 What Is AOU Collateralized Lending?

AOU Collateralized Lending is a decentralized, smart-contract-based lending protocol deployed on the Arbitrum (ARB) chain. Deposit crypto as collateral, borrow other crypto—no credit checks, no KYC, fully transparent on-chain. Loans are open-ended with no fixed term or late fees. You can repay whenever you like. If accrued interest pushes your LTV to 91%, the system liquidates automatically.

2.2 Key Parameters

Parameter	Value	Description
Initial LTV	78%	Default borrowing ratio
Maximum LTV	85%	Highest permitted ratio
Liquidation LTV	91%	Triggers automatic liquidation
Minimum Loan	100 USDT equiv.	Cannot borrow below this
Interest	Simple, hourly	< 1 hr rounded up to 1 hr
Loan Term	Open-ended	Repay anytime
Repayment Priority	Interest first	Partial payments reduce interest before principal
Collateral Mode	Single-asset	One collateral type per order
Network	Arbitrum (ARB)	Currently the only supported chain
Supported Assets	As displayed in the DApp	Updated on an ongoing basis

3. Quick-Start Guide

Getting started with AOU Collateralized Lending:

1. Open any compatible wallet and navigate to the AOU Ecosystem DApp. Tap “Collateralized Lending.”
2. Tap “Select Asset to Borrow” and choose the token you’d like to borrow.
3. Enter the amount you wish to borrow (minimum: 100 USDT equivalent).
4. Choose your collateral token. The system automatically calculates the required amount.
5. Confirm the collateral quantity and the wallet account to be used.
6. Review the confirmation screen: LTV, interest rate, liquidation price, and more.
7. Tap “Confirm Loan.” Complete the on-chain authorization, and your loan will be funded instantly.

Tip: Start with a small amount on your first loan. We recommend keeping your LTV below 65% to leave a comfortable safety margin.

4. Borrowing in Detail

4.1 Choosing a Token to Borrow

The lending home screen lists all available tokens along with their hourly interest rates. Tap any token card to open the borrowing form for that asset. Tapping the banner opens the form with USDT selected by default.

4.2 Loan Amount & Limits

• Minimum: 100 USDT equivalent. Amounts below this cannot be submitted.
• Maximum: Determined by (your collateral value × 85%) and the platform’s available pool, whichever is lower.
• Per-token caps may also apply. Check the DApp for the latest limits.

4.3 Selecting Collateral

Only one collateral token per Loan Order. If you want to use multiple tokens as collateral, create separate orders.

• Default quantity: Collateral Value = Loan Amount ÷ 0.78 (Initial LTV)
• Minimum collateral: Loan Amount ÷ 0.85 (Maximum LTV)
• Maximum collateral: Loan Amount ÷ 0.10 (10% LTV floor)

4.4 Confirming Your Loan

The confirmation screen shows: loan amount, collateral details and value, projected LTV, APR, estimated hourly interest, and liquidation price. Review everything carefully before tapping “Confirm Loan.”

Important: Interest begins accruing the instant your loan is funded. There is no fixed term, but interest accumulates continuously. If your LTV reaches 91%, liquidation is triggered automatically.

5. Managing Collateral

5.1 Topping Up

When your LTV rises, you can add more collateral to bring it back down. Go to Loan Details → Collateral Management → Add Collateral. The system shows real-time projections of your post-top-up LTV and liquidation price.

5.2 Removing Collateral

Switch to the “Remove Collateral” tab in Collateral Management and enter the amount you wish to withdraw. The system shows the resulting LTV change.

Warning: Removing collateral raises your LTV. Make sure your LTV stays within a safe range after the withdrawal.

6. Repayment & Loan Management

6.1 How Repayments Are Applied

Partial repayments are applied to interest first, then principal. For example: if you owe 1,000 USDT in principal and 50 USDT in interest, a 200 USDT repayment clears the 50 USDT interest first, then reduces the principal to 850 USDT.

6.2 Borrowing More

From the Loan Management screen, tap “Borrow More” and enter the additional amount. The system will display your projected LTV and liquidation price. Be aware that borrowing more raises your LTV.

6.3 Making a Repayment

You can repay any amount at any time. Tap “Repay,” then use the quick-select buttons (25% / 50% / 75% / 100%) or enter a custom amount. Your LTV drops immediately upon repayment. Full repayment releases all collateral.

6.4 Full Repayment

Full repayment settles your entire debt in one transaction. The confirmation screen shows: collateral to be returned, total debt, interest due, and current LTV. Make sure your available balance covers the full amount (principal + interest) before confirming.

7. Deposits & Withdrawals

7.1 Depositing

1. Tap “Deposit,” select the token, and enter the amount.
2. Choose your funding wallet and account.
3. Confirm the transaction and wait for on-chain confirmation.

First-time deposit: The system deploys a dedicated smart contract for your account, which requires an additional gas fee. Please ensure your wallet has enough gas tokens.

7.2 Withdrawing

1. Tap “Withdraw,” choose the token and network.
2. Enter the amount (up to your available balance).
3. Select the receiving wallet.
4. Confirm the transaction and enter your transaction password.

Withdrawals incur a gas fee. Net amount received = withdrawal amount – gas fee. Estimated arrival: ~5 minutes.

8. Risk Management & Liquidation

8.1 Health Status

Status	LTV Range	Recommended Action
Safe	0% – 70%	All good. Check in periodically.
Caution	71% – 80%	Risk is elevated. Consider adding collateral or making a partial repayment.
High Risk	81% – 90%	Urgent! Add collateral or repay immediately to avoid liquidation.

8.2 How Liquidation Works

When your LTV hits 91%—whether from a price drop or accumulated interest—the smart contract automatically:

1. Sells your collateral at market price.
2. Repays the loan principal.
3. Deducts accrued interest.
4. Deducts the liquidation fee (2% of the loan amount).
5. Transfers any remaining proceeds to the platform’s risk reserve.

Warning: Liquidation is irreversible. In extreme market conditions, your collateral may not cover the full debt, and all assets will be used for repayment.

8.3 How to Avoid Liquidation

• Keep your LTV below 65% to maintain a healthy buffer.
• Enable DApp push notifications so you receive risk alerts promptly.
• Top up collateral or make partial repayments when the market turns volatile.
• Don’t borrow up to the 85% cap—leave room between your LTV and the liquidation threshold.
• Check your loan status regularly, especially during market swings.

9. Alerts & Notifications

AOU provides a tiered alert system to help you stay on top of your loan’s risk status.

9.1 Alert Triggers

Alert Level	Trigger	Delivery Method
Caution (Yellow)	LTV reaches 70%	Platform push notification
High Risk (Red)	LTV reaches 80%	Push notification + on-screen warning
Critical	LTV reaches 85%	Push notification + on-screen warning
Liquidation	LTV ≥ 91%	Automatic liquidation + push notification

9.2 Delivery

Risk alerts are delivered via push notifications. Please ensure notifications are enabled for the AOU DApp in your wallet or browser settings.

Disclaimer: Notifications are provided on a best-effort basis. Delivery may be delayed or prevented by network conditions, wallet settings, or system limitations. Always monitor your LTV proactively.

10. Fees

Fee	Description	Amount	Charged By
Interest	Accrued hourly, added to balance	See rate page	Platform
Gas	Blockchain transaction fee	Variable	Network
Contract Deploy	One-time on first deposit	One-time	Network
Liquidation Fee	Deducted upon liquidation	2% of loan	Platform

Note: Rates may change based on market conditions. The rate displayed at the time of borrowing applies. No origination, repayment, or prepayment fees are charged.

11. Price Data Sources

All asset prices used in the platform—for LTV calculations, liquidation triggers, and borrowing limits—are supplied by a third-party decentralized price oracle.

11.1 What Is a Price Oracle?

A price oracle is infrastructure that feeds off-chain market prices to on-chain smart contracts. It aggregates prices from multiple major exchanges to prevent any single exchange from manipulating valuations.

11.2 How Prices Are Updated

• The platform uses aggregated, weighted-average prices from multiple major exchanges.
• Prices update in real time, keeping LTV and liquidation price calculations accurate.
• In extreme conditions the oracle may experience brief delays, but this does not compromise the fairness of liquidation decisions.

Transparency: The oracle contract address is publicly available. You can independently verify price feeds on the blockchain explorer.

12. Security & Authorization

12.1 Smart Contract Security

Your collateral is managed by a smart contract deployed on the Arbitrum (ARB) chain. The contract code is open and publicly verifiable. The platform cannot unilaterally access your assets—every action requires your wallet signature.

12.2 Token Approval

The first time you use a particular token, you’ll need to approve the smart contract to interact with it (ERC-20 Approve). This is a standard blockchain security mechanism—it does not transfer your assets. You can revoke the approval at any time through your wallet.

12.3 Transaction Password

Withdrawals require a transaction password to confirm the transfer. Keep it secure and never share it with anyone.

12.4 Network Safety

Important: Always double-check that you’ve selected the correct network before depositing or withdrawing. Sending assets to the wrong network may result in permanent loss.

13. Frequently Asked Questions

Borrowing

Q: What’s the most I can borrow?

A: Up to 85% of your collateral’s value. For example, 10,000 USDT worth of ETH lets you borrow up to 8,500 USDT. The system defaults to 78% LTV. We recommend staying well below the maximum.

Q: Is there a loan term? Can I be late?

A: No fixed term and no concept of being late. It’s an open-ended loan—repay whenever you want. But interest accrues every hour, and if it pushes your LTV to 91%, liquidation kicks in automatically.

Q: Why does my borrowing limit show 0?

A: Possible reasons: (1) you haven’t deposited any assets; (2) all your assets are already pledged; (3) the platform pool for that token is fully utilized; (4) network connectivity issue.

Q: How long until the funds arrive?

A: Typically within minutes of on-chain confirmation. May take longer during network congestion.

Collateral

Q: Can I use multiple tokens as collateral?

A: Not within a single Loan Order. Each order supports one collateral token. To use different tokens, create separate orders.

Q: Where is my collateral while the loan is active?

A: Locked in the smart contract—not in anyone’s wallet. The contract code is open-source and verifiable on-chain. Collateral is released automatically upon full repayment.

Q: Why does my LTV change on its own?

A: Two reasons: (1) the market price of your collateral moves; (2) interest accrues continuously, increasing your total debt. Your LTV can rise even if you do nothing.

Repayment & Liquidation

Q: What happens to my assets after liquidation?

A: The system deducts principal, accrued interest, and the liquidation fee (2% of the loan) from your collateral. Any remaining proceeds go to the platform’s risk reserve. In extreme cases, collateral may not cover the full debt.

Q: How are partial repayments applied?

A: Interest is deducted first, then principal. Example: on a 1,000 USDT loan with 50 USDT of accrued interest, a 200 USDT repayment clears the 50 interest, then reduces principal to 850.

Q: I’m seeing “insufficient balance” when trying to repay. What should I do?

A: Make sure your available balance has enough of the borrowed token. Remember that the total repayment includes both principal and accrued interest.

Account & Operations

Q: What’s the difference between Account Equity and Available Balance?

A: Account Equity = Collateral + Available Balance – Loan – Interest. It’s your net worth. Available Balance is the portion you can freely use—withdraw, trade, etc.

Q: Is the approval (authorize) step safe?

A: Yes. It’s a standard blockchain mechanism that lets the contract operate within a set allowance. It doesn’t transfer your assets. You can revoke it anytime in your wallet.

Q: I sent assets to the wrong network. Can I get them back?

A: In most cases, no. Always verify the network before confirming a transaction. If this happens, contact support immediately—we’ll do our best to help, but recovery is not guaranteed.

Interest & Fees

Q: How is interest calculated?

A: Hourly, on a simple-interest basis: Hourly Interest = (Principal + Accrued Interest) × Hourly Rate. Periods under 1 hour are rounded up. Interest is automatically added to your loan balance and affects your LTV.

Q: What’s the liquidation fee?

A: 2% of the loan amount, deducted from your collateral during liquidation.

Q: What’s the contract deployment fee?

A: A one-time gas fee charged on your first deposit to deploy a dedicated smart contract for your account. Subsequent transactions do not incur this fee.

Transaction Failures

Q: My loan failed. What happened?

A: Common causes: (1) extreme market volatility caused the execution price to exceed the slippage protection threshold; (2) network congestion led to a timeout; (3) insufficient gas. Your collateral is not deducted on failure, but gas consumed is not refunded. Check your transaction history for details.

Q: Are my assets safe if a transaction fails?

A: Yes. Failed on-chain transactions are rolled back entirely—your collateral and loan status remain unchanged. The only cost is the gas already spent.

14. Legal Agreements

For full terms and conditions, risk disclosures, and privacy practices, please refer to the three standalone legal documents published by the platform: the Master Service Agreement, the Risk Disclosure Statement, and the Privacy Policy. By using the Service, you acknowledge that you have read and agree to all three documents. For any questions, reach out via the in-DApp feedback channel or email us at support@aoulink.com.

AOU Ecosystem | Help Center v2.0 | April 2026

AOU Ecosystem

抵押借贷服务主协议

Master Service Agreement for Collateralized Lending

公司主体：AOU TRADING LIMITED

注册地：State of California, United States of America

版本：v1.0 | 生效日期：2026年4月1日

第一条 总则与定义

1.1 协议主体

1.1.1 本抵押借贷服务主协议（以下称“本协议”）由AOU TRADING LIMITED（以下称“公司”或“我们”）与使用本服务的个人或实体（以下称“用户”或“您”）共同订立。

1.1.2 公司依据美国加利福尼亚州（State of California）法律注册成立，作为本服务的运营主体。

1.1.3 本协议连同《风险披露声明》和《隐私协议》共同构成您与公司之间的完整协议。如本协议与其他文件存在冲突，以本协议为准。

1.2 核心定义

术语	定义
抵押借贷	用户将加密资产作为抵押物锁定在智能合约中，借出另一种加密资产的服务。
抵押率 (LTV)	借款总额（本金+利息）与抵押资产当前市值的比例，按百分比表示。
清算	抵押率达到阈值时，智能合约自动卖出抵押物用以偿还债务的过程。
智能合约	部署在区块链上的自动执行程序，管理抵押、借贷和清算逻辑。
价格预言机	将链下市场价格传输到链上智能合约的第三方去中心化基础设施。
借贷订单	一笔借贷的完整记录，包括抵押资产、借款金额、利息、抵押率等。
网络费 (Gas)	链上交易的矿工/验证者手续费，由区块链网络收取，非公司费用。

第二条 服务内容

2.1 公司提供基于智能合约的抵押借贷服务，当前部署在 Arbitrum (ARB) 链上。服务包括：借款、还款、抵押管理（追加/移除）、资产存入与提取。

2.2 本服务为活期借贷，无固定期限，无逾期概念。用户可随时还款。

2.3 每个借贷订单仅支持单一币种抵押。如需使用不同币种抵押，可创建多个独立借贷订单。所有借出资产均为 Arbitrum (ARB) 链上对应资产。

2.4 本服务不构成投资建议、财务顾问服务或任何形式的证券发行。公司不是经纪商、交易商或注册投资顾问。

第三条 用户资格与合规

3.1 您声明并保证已年满 18 周岁或达到您所在司法管辖区规定的法定成年年龄。

3.2 您声明不是美国财政部海外资产控制办公室（OFAC）制裁名单上的个人或实体，且不位于任何被美国全面制裁的国家或地区（包括但不限于朝鲜、伊朗、叙利亚、古巴、克里米亚等）。

3.3 您声明资金来源合法，不会将本服务用于洗钱、恐怖融资或其他违反美国《银行保密法》（Bank Secrecy Act）及相关法规的活动。

3.4 公司保留根据合规要求对特定司法管辖区的用户限制或禁止服务的权利。

第四条 借贷规则

4.1 核心参数

参数	数值	说明
初始抵押率	78%	系统默认借款比例
最大抵押率	85%	允许的最高借款比例
清算抵押率	91%	触发自动清算
最低借款	等值 100 USDT	低于无法借款
计息方式	按小时计息	不足 1h 按 1h 计
还款优先级	先息后本	部分还款优先扣息
抵押模式	单币种	每个订单仅支持一种
清算费	借款额×2%	从抵押资产扣除

4.2 利息规则

4.2.1 借款利息按小时计算并自动累加到借款总额。不足 1 小时按 1 小时计算。

4.2.2 利息自借款成功时开始累计，直至全额还清或触发清算。

4.2.3 公司有权调整利率。利率调整仅对调整后新创建的借贷订单生效，已有借贷订单的利率不受影响。利率调整将通过平台提前通知用户。

4.2.4 利息按单利方式计算，不会产生复利。页面显示的年化利率 (APR) 为参考值，实际利息以链上智能合约逐小时计算结果为准。

4.3 还款规则

4.3.1 用户可随时部分或全额还款，无提前还款罚金。

4.3.2 部分还款优先扣除累计利息，剩余抵扣本金。

4.3.3 全额还款后，抵押资产由智能合约自动解锁释放。

第五条 清算机制

5.1 抵押率 ≥ 91% 时，智能合约自动触发清算，无需用户确认，不可撤销。

5.2 抵押率 = (借款本金 + 累计利息) ÷ 抵押资产当前市值 × 100%。

5.3 抵押资产市值由第三方去中心化价格预言机提供，合约地址公开可查。

5.4 清算执行流程：

1. 智能合约检测抵押率 ≥ 91%。
2. 自动卖出抵押资产，按市价成交。
3. 依次扣除：借款本金 → 累计利息 → 清算费（借款额×2%）。
4. 扣除清算费用后的剩余资产进入平台风险准备金账户。
5. 如穿仓，资产全部用于偿还，差额由平台风险准备金覆盖。

5.5 清算价格 = (借款本金 + 累计利息) ÷ (抵押物数量 × 0.91)。

5.6 如预言机异常，公司可启动应急机制暂停清算。

第六条 费用说明

费用类型	说明	金额	收取方
借款利息	按小时计息累加	见币种利率	公司
清算费	触发清算时扣除	借款额×2%	公司
网络费(Gas)	链上交易矿工费	动态	区块链
合约部署费	首次存入时部署合约	一次性	区块链

6.1 本平台不收取借款手续费、还款手续费或提前还款罚金。

6.2 利率可能调整，以 DApp 实时显示为准。新费用将提前通知。

第七条 智能合约与授权

7.1 使用本服务需授权智能合约操作特定代币（ERC-20 Approve）。授权仅允许合约在指定额度内操作，不会直接转走您的资产。

7.2 您可随时通过钱包撤销授权。撤销后已有借贷订单不受影响。

7.3 合约代码公开透明，部署在 Arbitrum 链上，任何人均可在区块链浏览器上查验合约代码。

7.4 首次存入时部署专属智能合约，需支付一次性合约部署网络费。

第八条 预警与通知

8.1 抵押率达到 70%/80%/85% 时分级发送风险预警。

8.2 通知仅作提示，公司不保证及时送达。用户应主动监控抵押率。

8.3 未收到通知不构成延迟清算的理由。

第九条 免责声明与责任限制

9.1 THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

9.2 因智能合约漏洞、预言机故障、区块链故障、市场波动、第三方服务中断等造成的损失，公司尽力协助但不承担赔偿责任。

9.3 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES.

9.4 公司单一事件最大赔偿不超过您事件前 30 天支付的费用总额。

第十条 适用法律与争议解决

10.1 本协议受美国加利福尼亚州法律管辖，不适用其法律冲突规则。

10.2 BINDING ARBITRATION: 争议提交美国仲裁协会 (AAA) 依据其商业仲裁规则进行仲裁。仲裁地：Los Angeles, California。

10.3 CLASS ACTION WAIVER: 您同意放弃参与任何集体诉讼或集体仲裁。所有争议以个人身份解决。

10.4 任何一方均可向有管辖权的法院寻求临时禁令或衡平法救济。

第十一条 不可抗力

11.1 因战争、自然灾害、政府行为、法规变化、网络攻击、区块链故障、电力中断等不可抗力因素导致服务中断或用户损失，公司不承担责任。

第十二条 协议变更与终止

12.1 重大变更提前 30 天通知。变更后继续使用即视为接受。

12.2 用户可随时全额还款并关闭借贷订单终止服务。

12.3 公司可因合规或其他合理原因暂停/终止服务，提前通知用户。

第十三条 其他条款

13.1 可分割性：任何条款无效不影响其余条款效力。

13.2 本协议连同《风险披露声明》和《隐私协议》构成完整协议。

13.3 未经公司书面同意，用户不得转让本协议权利义务。

13.4 AOU 平台所有界面、内容和商标受知识产权保护。

13.5 联系方式：如有任何问题，请通过 DApp 内反馈渠道、邮箱 support@aoulink.com 或平台公布的联系方式与我们取得联系。

AOU TRADING LIMITED | v1.0 | 2026年4月

AOU Ecosystem

Collateralized Lending

Master Service Agreement

Entity: AOU TRADING LIMITED

Incorporated in the State of California, USA

Version 1.0 | Effective: April 1, 2026

Article 1 — General Provisions & Definitions

1.1 Parties

1.1.1 This Master Service Agreement (“this Agreement”) is entered into by and between AOU TRADING LIMITED (“the Company,” “we,” or “us”), and the individual or entity accessing or using the Service (“the User,” “you,” or “your”).

1.1.2 The Company is incorporated under the laws of the State of California, United States of America.

1.1.3 This Agreement, together with the Risk Disclosure Statement and Privacy Policy, constitutes the entire agreement between you and the Company. In the event of any conflict, this Agreement shall prevail.

1.2 Key Definitions

Term	Definition
Collateralized Lending	A service whereby users lock crypto assets as collateral in a smart contract in order to borrow other crypto assets.
Loan-to-Value (LTV)	The ratio of the total outstanding loan (principal plus accrued interest) to the current market value of the collateral, expressed as a percentage.
Liquidation	The automatic sale of collateral by the smart contract to repay outstanding debt when the LTV reaches or exceeds the liquidation threshold.
Smart Contract	A self-executing program deployed on a blockchain that governs collateral custody, lending logic, and liquidation.
Price Oracle	A third-party decentralized infrastructure that feeds off-chain market prices to on-chain smart contracts.
Loan Order	A complete record of a single borrowing transaction, including collateral, loan amount, interest, and LTV.
Gas Fee	A transaction fee paid to blockchain validators for processing on-chain transactions. This is not a Company fee.

Article 2 — Scope of Service

2.1 The Company provides a smart-contract-based collateralized lending service currently deployed on the Arbitrum (ARB) chain. The Service includes borrowing, repayment, collateral management (adding and removing), and asset deposits and withdrawals.

2.2 All loans are open-ended with no fixed term and no concept of default or late payment. You may repay at any time.

2.3 Each Loan Order supports only a single collateral asset. To use multiple collateral types, you may create separate Loan Orders. All borrowed assets are native to the Arbitrum chain.

2.4 The Service does not constitute investment advice, financial advisory services, or a securities offering of any kind. The Company is not a broker-dealer, exchange, or registered investment adviser.

Article 3 — Eligibility & Compliance

3.1 You represent and warrant that you are at least 18 years of age or have reached the age of legal majority in your jurisdiction.

3.2 You represent that you are not listed on any sanctions list maintained by the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) and that you are not located in any comprehensively sanctioned country or region, including but not limited to North Korea, Iran, Syria, Cuba, and the Crimea region.

3.3 You represent that the funds you use in connection with the Service are lawfully obtained and will not be used for money laundering, terrorist financing, or any activity that violates the U.S. Bank Secrecy Act (BSA) or related laws.

3.4 The Company reserves the right to restrict or prohibit access from specific jurisdictions as required by applicable law. Restricted jurisdictions will be published and updated on the platform.

Article 4 — Lending Terms

4.1 Core Parameters

Parameter	Value	Description
Initial LTV	78%	Default borrowing ratio
Maximum LTV	85%	Highest permitted borrowing ratio
Liquidation LTV	91%	Triggers automatic liquidation
Minimum Loan	100 USDT equivalent	Below this amount, borrowing is unavailable
Interest Method	Simple interest, hourly	Periods under 1 hour are rounded up
Repayment Priority	Interest first, then principal	Partial repayments reduce interest before principal
Collateral Mode	Single-asset	Each Loan Order accepts only one collateral token
Liquidation Fee	2% of loan amount	Deducted from collateral during liquidation

4.2 Interest

4.2.1 Interest is calculated hourly on a simple-interest basis and added to the outstanding loan balance. Any period shorter than one hour is rounded up to one full hour.

4.2.2 Interest begins accruing the moment a loan is successfully funded and continues until the loan is fully repaid or liquidated.

4.2.3 The Company may adjust interest rates at its discretion. Rate changes apply only to Loan Orders created after the adjustment takes effect; existing Loan Orders are unaffected. Users will be notified in advance through the platform.

4.2.4 Interest is computed on a simple-interest basis and does not compound. The annualized percentage rate (APR) displayed on the platform is for reference only; actual interest is determined by the smart contract on an hourly basis.

4.3 Repayment

4.3.1 You may make partial or full repayments at any time with no prepayment penalty.

4.3.2 Partial repayments are applied first to accrued interest, with any remainder reducing the principal.

4.3.3 Upon full repayment, the smart contract automatically unlocks and releases all collateral to your account.

Article 5 — Liquidation

5.1 When the LTV of a Loan Order reaches or exceeds 91%, the smart contract automatically triggers liquidation. No user confirmation is required, and the process is irreversible.

5.2 LTV is calculated as: LTV = (Principal + Accrued Interest) ÷ Current Market Value of Collateral × 100%.

5.3 Collateral market value is provided by a third-party decentralized price oracle that aggregates weighted average prices from multiple major exchanges. The oracle contract address is publicly verifiable.

5.4 Liquidation proceeds are applied in the following order:

1. The smart contract detects that LTV ≥ 91%.
2. Collateral is automatically sold at market price.
3. Proceeds are applied to: loan principal → accrued interest → liquidation fee (2% of loan amount).
4. Any remaining assets are transferred to the platform’s risk reserve.
5. If collateral is insufficient to cover the full debt (shortfall), all proceeds are used for repayment and the deficit is absorbed by the platform’s risk reserve.

5.5 Liquidation Price = (Principal + Accrued Interest) ÷ (Collateral Quantity × 0.91). The liquidation price rises gradually as interest accrues.

5.6 In the event of an oracle malfunction or anomalous pricing, the Company may activate an emergency mechanism to pause liquidations until prices normalize.

Article 6 — Fees

Fee Type	Description	Amount	Charged By
Loan Interest	Accrued hourly, added to balance	See rate page	Company
Liquidation Fee	Deducted upon liquidation	2% of loan	Company
Gas Fee	Blockchain transaction fee	Variable	Network
Contract Deployment	One-time, on first deposit	One-time	Network

6.1 The platform does not charge origination fees, repayment fees, or prepayment penalties.

6.2 Interest rates may be adjusted based on market conditions. The rates shown on the DApp at the time of borrowing apply. Any new fee types will be announced in advance.

Article 7 — Smart Contract & Authorization

7.1 To use the Service, you must authorize the smart contract to interact with specific tokens in your wallet (ERC-20 Approve). This authorization only permits the contract to operate within the approved allowance and does not grant the ability to transfer your assets at will.

7.2 You may revoke authorization at any time through your wallet. Existing Loan Orders will not be affected, but new loans cannot be created.

7.3 Smart contract source code is open and publicly verifiable on the Arbitrum blockchain explorer.

7.4 On your first deposit, the system deploys a dedicated smart contract for your account, which requires a one-time gas fee.

Article 8 — Alerts & Notifications

8.1 The platform sends tiered risk alerts when your LTV reaches 70% (Caution), 80% (High Risk), and 85% (Critical).

8.2 Notifications are provided on a best-effort basis. The Company does not guarantee timely delivery due to factors such as network conditions, wallet settings, or browser limitations. You are responsible for actively monitoring your LTV.

8.3 Failure to receive or act upon a notification does not constitute grounds for delaying or contesting a liquidation.

Article 9 — Disclaimers & Limitation of Liability

9.1 THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

9.2 The Company shall not be liable for losses arising from smart contract vulnerabilities, oracle failures, blockchain network disruptions, market volatility, or interruptions to third-party services. The Company will make reasonable efforts to assist but assumes no obligation to compensate.

9.3 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES.

9.4 The Company’s total aggregate liability for any single event or series of related events shall not exceed the total fees actually paid by you to the Company in the 30 days preceding the event.

Article 10 — Governing Law & Dispute Resolution

10.1 This Agreement shall be governed by and construed in accordance with the laws of the State of California, without regard to its conflict-of-laws provisions.

10.2 BINDING ARBITRATION: Any dispute arising out of or relating to this Agreement shall first be resolved through good-faith negotiation. If negotiation fails, the dispute shall be submitted to binding arbitration administered by the American Arbitration Association (AAA) under its Commercial Arbitration Rules. The seat of arbitration shall be Los Angeles, California.

10.3 CLASS ACTION WAIVER: You agree to waive any right to participate in a class action lawsuit or class-wide arbitration. All disputes shall be resolved on an individual basis.

10.4 Notwithstanding the above, either party may seek injunctive or other equitable relief from a court of competent jurisdiction.

Article 11 — Force Majeure

11.1 The Company shall not be liable for any failure or delay in performance resulting from circumstances beyond its reasonable control, including but not limited to war, natural disasters, government action, regulatory changes, cyberattacks, blockchain network failures, or power outages.

Article 12 — Amendment & Termination

12.1 The Company may amend this Agreement at any time. Material changes will be announced at least 30 days in advance via the platform. Your continued use of the Service after such changes take effect constitutes acceptance.

12.2 You may terminate your use of the Service at any time by fully repaying all outstanding loans and closing all Loan Orders.

12.3 The Company may suspend or terminate the Service for regulatory, technical, or other reasonable reasons. Users will be given advance notice and a reasonable period to settle outstanding Loan Orders.

Article 13 — Miscellaneous

13.1 Severability: If any provision of this Agreement is held invalid or unenforceable, the remaining provisions shall continue in full force and effect.

13.2 Entire Agreement: This Agreement, together with the Risk Disclosure Statement and Privacy Policy, constitutes the entire agreement between the parties and supersedes all prior oral or written agreements on the same subject matter.

13.3 Assignment: You may not assign any rights or obligations under this Agreement without the Company’s prior written consent.

13.4 Intellectual Property: All interface designs, content, and trademarks of the AOU Ecosystem are protected by intellectual property law. Smart contract code is open-source but may not be used for commercial purposes without authorization.

13.5 Contact: For questions or concerns, please reach out through the in-DApp feedback channel, by email at support@aoulink.com, or via the contact information published on the platform.

AOU TRADING LIMITED | v1.0 | April 2026

AOU Ecosystem

隐私协议

Privacy Policy

公司主体：AOU TRADING LIMITED

版本：v1.0 | 生效日期：2026年4月1日

一、概述

1.1 本隐私协议由AOU TRADING LIMITED发布，说明我们在您使用抵押借贷服务时收集、使用、存储和保护您信息的方式。

1.2 本协议是《抵押借贷服务主协议》的组成部分。使用本服务即表示同意本协议全部内容。

二、我们收集的信息

2.1 钱包与交易信息

• 区块链钱包地址（公开地址，非私钥）
• 链上交易记录（借款、还款、抵押、清算、存取等）
• 资产余额和抵押状态

2.2 设备与技术信息

• 设备类型、操作系统、DApp 版本
• 推送通知标识（用于风险预警）
• IP 地址和大致地理位置（合规和安全防护）
• 崩溃报告和性能数据

2.3 使用数据

• 功能使用情况和操作日志
• 客服沟通记录

2.4 我们不收集的信息

• 钱包私钥或助记词（技术上无法访问）
• 身份证件、姓名、电话、邮箱等个人身份信息（无需 KYC）
• 银行账户或信用卡信息

三、信息使用目的

• 提供、维护和改进抵押借贷服务
• 发送风险预警和交易状态通知
• 监控和防范异常交易行为
• 遵守美国法律法规（BSA/AML、OFAC 等）
• 产品改进和性能优化

四、信息共享与披露

4.1 我们不会出售您的个人信息。

4.2 以下情况可能共享信息：

• 经您明确同意
• 遵守美国联邦或州级法律、传票或法院命令
• 应监管机构（FinCEN、SEC、CFTC 等）要求
• 与审计机构共享必要合约安全信息
• 与预言机、区块链分析服务共享公开链上数据

五、数据安全与存储

5.1 采用行业标准加密和安全措施保护数据。

5.2 链上交易数据永久存储在区块链上，无法删除。

5.3 离线数据保存期限为服务期间及美国法律要求的合理期限。

5.4 数据处理和存储可能涉及美国境内服务器。跨境传输将采取适当保护措施。

六、您的权利

6.1 访问权：可在区块链浏览器查看所有链上交易记录。

6.2 推送控制权：可在钱包或浏览器设置中关闭平台推送通知。

6.3 授权撤销权：可随时在钱包中撤销代币授权。

6.4 CCPA 权利（加州居民）：(a) 知情权；(b) 删除权（链上数据除外）；(c) 不出售权（我们已承诺不出售）。通过平台 客服行使。

6.5 其他州级隐私权利（VCDPA、CPA 等）同样尊重，请联系我们了解详情。

七、第三方服务

7.1 本服务可能依赖第三方服务（预言机、区块链、钱包等），它们有独立的隐私政策。

八、儿童隐私

8.1 本服务不面向 18 岁以下未成年人。不故意收集未成年人信息，如发现将立即删除。

九、协议更新

9.1 重大变更提前 30 天通知。变更后继续使用即视为接受。

十、联系我们

10.1 如有隐私相关问题，请通过以下方式联系：

• DApp 内反馈渠道
• 公司平台公布的联系方式
• 邮箱：support@aoulink.com

AOU TRADING LIMITED | v1.0 | 2026年4月

AOU Ecosystem

Privacy Policy

Entity: AOU TRADING LIMITED

Version 1.0 | Effective: April 1, 2026

1. Overview

1.1 This Privacy Policy is published by AOU TRADING LIMITED (“the Company” or “we”) and explains how we collect, use, store, and protect your information when you use the collateralized lending service.

1.2 This policy is an integral part of the Master Service Agreement. By using the Service, you agree to the terms set out herein.

2. Information We Collect

2.1 Wallet & Transaction Data

• Your blockchain wallet address (public address only—never your private key)
• On-chain transaction records (borrowing, repayment, collateral, liquidation, deposits, withdrawals)
• Asset balances and collateral status

2.2 Device & Technical Data

• Device type, operating system, DApp version
• Push-notification identifiers (used to deliver risk alerts)
• IP address and approximate geolocation (for compliance and security purposes)
• Crash reports and performance data

2.3 Usage Data

• Feature usage patterns and interaction logs
• Support communication records

2.4 Information We Do NOT Collect

• Wallet private keys or seed phrases (we are technically unable to access these)
• Government-issued IDs, legal names, phone numbers, or email addresses (the Service does not require KYC)
• Bank account or credit card information

3. How We Use Your Information

• Providing, maintaining, and improving the lending service
• Sending risk alerts and transaction status notifications
• Monitoring for abnormal or suspicious transaction activity
• Complying with applicable U.S. federal and state laws (including BSA/AML and OFAC requirements)
• Product improvement and performance optimization

4. Information Sharing & Disclosure

4.1 We do not sell your personal information.

4.2 We may share your information in the following circumstances:

• With your explicit consent
• To comply with U.S. federal or state law, regulation, subpoena, or court order
• In response to requests from regulatory authorities (including FinCEN, SEC, and CFTC)
• With third-party security auditors as necessary to ensure smart contract integrity
• With oracle providers and blockchain analytics services (limited to publicly available on-chain data)

5. Data Security & Storage

5.1 We employ industry-standard encryption, access controls, and security measures to protect your data.

5.2 On-chain transaction data is permanently stored on the blockchain. This is an inherent characteristic of blockchain technology and cannot be deleted or modified.

5.3 Off-chain data is retained for the duration of the Service and for any period required by U.S. law thereafter.

5.4 Data processing and storage may involve servers located within the United States. Where cross-border transfers occur, we implement appropriate safeguards.

6. Your Rights

6.1 Access: You can view all of your on-chain transaction records at any time through a blockchain explorer.

6.2 Notification Control: You can disable platform push notifications through your wallet or browser settings.

6.3 Authorization Revocation: You can revoke token approvals granted to the smart contract at any time through your wallet.

6.4 CCPA Rights (California Residents): If you are a California resident, you have the right to: (a) know what information we collect; (b) request deletion of your information (excluding on-chain data); and (c) opt out of the sale of your information (we do not sell personal information). To exercise these rights, please contact us through the in-DApp feedback channel.

6.5 Other State Privacy Rights: We also respect privacy rights under other U.S. state laws such as the Virginia VCDPA and Colorado CPA. Please contact us for details.

7. Third-Party Services

7.1 The Service may integrate or depend on third-party services such as price oracles, blockchain networks, and wallet providers. These third parties maintain their own privacy policies, which we encourage you to review independently.

8. Children’s Privacy

8.1 The Service is not intended for individuals under 18 years of age. We do not knowingly collect information from minors. If we discover that we have inadvertently collected such information, we will delete it promptly.

9. Updates to This Policy

9.1 We may update this Privacy Policy from time to time. Material changes will be announced at least 30 days in advance through the platform.

9.2 Your continued use of the Service after changes take effect constitutes acceptance of the updated policy.

10. Contact Us

10.1 If you have questions about this Privacy Policy or wish to exercise your data rights, you may reach us through:

• The in-DApp feedback channel
• Contact information published on the platform
• Email: support@aoulink.com

AOU TRADING LIMITED | v1.0 | April 2026

AOU Ecosystem

风险披露声明

Risk Disclosure Statement

用户首次借款时须在确认页面勾选同意

公司主体：AOU TRADING LIMITED

版本：v1.0 | 生效日期：2026年4月1日

一、总则

1.1 本风险披露声明由AOU TRADING LIMITED发布，旨在向您充分揭示使用抵押借贷服务可能面临的各类风险。

1.2 您勾选“我已阅读并理解风险披露声明”或实际使用本服务，即表示您已充分了解并自愿承担以下全部风险。

1.3 本声明是《抵押借贷服务主协议》的组成部分，与主协议具有同等法律效力。

二、市场与价格风险

2.1 加密资产价格波动剧烈，可能在极短时间内大幅下跌，导致抵押率快速升高。

2.2 抵押率达到 91% 时，系统自动卖出抵押物用以偿还债务。此过程不可逆，可能损失部分或全部抵押资产。

2.3 极端行情下，抵押资产可能不足以覆盖全部债务，资产将全部用于偿还，无剩余退回。

2.4 借款币种价格上涨也会导致抵押率升高。

2.5 加密资产不受 SIPC 或 FDIC 保障。

三、清算风险

3.1 清算由智能合约自动执行，无需人工审批，不可撤销。

3.2 实际成交价可能因流动性不足而低于预期（滑点）。

3.3 清算费为借款金额的 2%。

3.4 公司不保证风险通知及时送达。您应主动监控抵押率。

四、利息风险

4.1 利息按小时累加，即使不操作也会推高抵押率，最终可能触发清算。

4.2 利率可能调整。利息按单利计算，不会复利。

五、技术风险

5.1 智能合约代码公开可查，但无法完全排除漏洞。合约一经部署无法修改。

5.2 预言机故障/延迟/操纵可能导致抵押率计算失准。

5.3 网络拥堵/分叉/停机可能导致交易延迟或失败。

5.4 向错误网络发送资产可能永久丢失。

六、操作风险

6.1 私钥/助记词丢失或泄露可能导致资产被盗，公司无法找回。

6.2 链上交易一经确认不可撤销。

6.3 借款可能因滑点保护而失败。失败时抵押资产不扣除，但 Gas 不退还。

七、监管风险

7.1 未来美国联邦或州级法规变化可能影响本服务的可用性。

7.2 用户应自行了解其司法管辖区的加密资产税务义务和报告要求。

八、确认声明

勾选此项即表示您确认：

• 已年满 18 周岁或达到法定成年年龄。
• 已充分阅读并理解本风险披露声明全部内容。
• 理解存在损失全部抵押资产的风险。
• 使用的资金均为可承受损失的资金。
• 本服务不受 SIPC 或 FDIC 保障。
• 不位于 OFAC 制裁名单或被制裁国家/地区。
• 自愿承担使用本服务产生的一切风险和损失。

AOU TRADING LIMITED | v1.0 | 2026年4月

AOU Ecosystem

Risk Disclosure Statement

You must acknowledge this statement before your first loan

Entity: AOU TRADING LIMITED

Version 1.0 | Effective: April 1, 2026

1. Purpose

1.1 This Risk Disclosure Statement is published by AOU TRADING LIMITED to inform you of the risks associated with using the collateralized lending service. Please read it carefully before proceeding.

1.2 By checking “I have read and understand the Risk Disclosure Statement” or by using the Service, you acknowledge that you fully understand and voluntarily assume all risks described herein.

1.3 This statement forms an integral part of the Master Service Agreement and carries the same legal effect.

2. Market & Price Risk

2.1 Crypto asset prices are highly volatile and can decline sharply in a very short period. The value of your collateral may drop significantly during the life of a loan, causing your LTV to rise rapidly.

2.2 When the LTV reaches or exceeds 91%, the system will automatically sell your collateral to repay the debt. This process is irreversible, and you may lose some or all of your collateral.

2.3 In extreme market conditions—such as flash crashes or liquidity crises—your collateral may be insufficient to cover the full debt. In that case, all collateral will be used for repayment with nothing returned.

2.4 A rise in the price of the borrowed asset can also increase your LTV and trigger liquidation.

2.5 Crypto assets are not protected by the Securities Investor Protection Corporation (SIPC) or the Federal Deposit Insurance Corporation (FDIC).

3. Liquidation Risk

3.1 Liquidation is executed automatically by the smart contract without human review or user confirmation. Once triggered, it cannot be reversed.

3.2 During liquidation, collateral is sold at market price. The actual execution price may be lower than expected due to slippage, especially in illiquid markets.

3.3 A liquidation fee equal to 2% of the loan amount will be deducted from the collateral proceeds.

3.4 The Company sends risk alerts via the platform but cannot guarantee timely delivery. You are responsible for monitoring your LTV at all times.

4. Interest Risk

4.1 Interest accrues every hour. Even if you take no action, accumulated interest will gradually push your LTV higher, potentially triggering liquidation.

4.2 Interest rates may be adjusted. Interest is calculated on a simple-interest basis and does not compound.

5. Technology Risk

5.1 Smart Contract Risk: The contract code is publicly verifiable, but no audit can eliminate all potential vulnerabilities. Once deployed, smart contracts cannot be modified.

5.2 Oracle Risk: Oracle failures, delays, or manipulation could cause inaccurate LTV calculations.

5.3 Network Risk: Blockchain congestion, forks, or outages may delay or prevent transactions.

5.4 Cross-Chain Risk: Sending assets to the wrong network may result in permanent, irrecoverable loss.

6. Operational Risk

6.1 Loss or exposure of your wallet private key or seed phrase may lead to theft of your assets. The Company cannot recover them.

6.2 On-chain transactions are final and cannot be reversed once confirmed.

6.3 A loan may fail if the actual execution price deviates beyond the slippage protection threshold. In such cases, your collateral will not be deducted, but the gas fee consumed will not be refunded.

7. Regulatory Risk

7.1 Future changes to U.S. federal or state regulations may affect the availability or functionality of the Service.

7.2 You are solely responsible for understanding and complying with the tax obligations and reporting requirements applicable to crypto assets in your jurisdiction.

8. Your Acknowledgment

By checking the acknowledgment box, you confirm that:

• You are at least 18 years old or have reached the legal age of majority in your jurisdiction.
• You have read and fully understand this Risk Disclosure Statement.
• You understand that you may lose all of your collateral.
• The funds you are using are funds you can afford to lose.
• The Service is not protected by SIPC or FDIC.
• You are not on any OFAC sanctions list or located in a sanctioned country or region.
• You voluntarily assume all risks and losses arising from your use of the Service.

AOU TRADING LIMITED | v1.0 | April 2026