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名词解释 · 操作指南 · 规则说明 · 常见问题

版本：v1.0 | 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、创建交易账户详解

五、交易操作

六、保证金管理

七、账户关闭与结算

八、存入与提取

九、风控与清算机制

十、预警与通知机制

十一、费用说明

十二、价格数据来源

十三、安全与授权

十四、常见问题 (FAQ)

十五、相关法律协议

一、名词解释

以下是您在使用 AOU 超额借贷产品时会遇到的核心术语。建议您在开始操作前仔细阅读。

术语	解释
超额借贷	用户存入保证金后，可借入保证金价值的2至5倍的加密资产。借入的资产被锁定在链上智能合约内，仅可在Uniswap上交易指定代币，不可直接提现。
交易账户	系统为每笔借贷在Arbitrum网络上部署的智能合约。用户拥有交易权限，保证金和借入资产均托管于其中。ID格式如 #VLT 8829-X01。
保证金	用户存入智能合约作为借款抵押的数字资产。保证金 = 借款金额 ÷ 杠杆倍数。
杠杆倍数	借款金额与保证金的比率，可选2x至5x。倍数越高，借入资金越多，对应的借款日利息也越高，风险越大。
借款金额	平台借给用户的币种和数量。这是借款本金，不包含利息。用户最终需要归还本金 + 累计利息。
风险率	衡量交易账户安全程度的核心指标。风险率 = （累计亏损 + 累计利息）÷ 初始保证金 × 100%。达到 91% 触发清算。
清算（强制平仓）	风险率 ≥ 91% 时，智能合约自动卖出所有持仓并兑换为借款币种，扣除本金、利息及清算费用后，剩余资产进入风险准备账户。
风险准备账户	平台设立的专项账户，用于接收清算后的剩余资产，覆盖极端行情下的穿仓损失，保障平台系统正常运转。
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%）。
基础利率	每种可借代币的统一日利率。实际日利率 = 基础利率 × 杠杆倍数。利息按小时以单利方式计算。
智能合约	部署在Arbitrum链上的自动执行程序。保证金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Arbitrum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。
平台手续费	超额借贷平台收取的服务费用，创建交易账户时一次性从借款金额中扣除。
浮动盈亏	交易账户中持仓资产的未实现盈亏。仅在卖出或关闭账户时才成为已实现盈亏。
追加保证金	在已有交易账户上增加保证金，以降低风险率、降低清算风险。
提取保证金	从交易账户中取回部分保证金。会提高风险率，增加清算风险。
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。

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 超额借贷

AOU 超额借贷是基于智能合约的去中心化杠杆借贷服务。您存入保证金后，可借入保证金价值的2至5倍的加密资产，在Uniswap上进行交易。借入的资产被锁定在交易账户智能合约内，您拥有交易权限但无法提现。所有操作透明可查，无需KYC。

2.2 核心参数一览

参数	数值	说明
杠杆范围	2x – 5x	最低2倍，最高5倍
清算风险率	91%	触发强制平仓的阈值
最低保证金	等值 100 USDT	低于此金额无法创建账户
计息方式	按小时计息（单利）	不足1小时扙1小时计
利率模型	基础利率 × 杠杆倍数	每种币种统一基础利率，以应用内显示为准
保证金计算	借款金额 ÷ 杠杆倍数	例：借10,000选5x，保证金=2,000
支持网络	Arbitrum (ARB)	当前仅支持 Arbitrum 链
交易平台	Uniswap	具体交易对以应用内显示为准
清算后剩余	进入风险准备账户	不退还用户

2.3 保证金计算示例

假设您想借入价值 10,000 USDT 的 ETH：

• 选2x杠杆：保证金 = 10,000 ÷ 2 = 5,000 USDT

• 选3x杠杆：保证金 = 10,000 ÷ 3 ≈ 3,333 USDT

• 选5x杠杆：保证金 = 10,000 ÷ 5 = 2,000 USDT

重要： 杠杆越高，保证金越少，但风险也越大。建议新手从低倍杠杆开始。

三、快速入门指南

第一次使用 AOU 超额借贷的完整步骤：

• 打开任意支持的钱包，访问 AOU 生态 DApp，点击「超额借贷」。

• 点击「创建交易账户」。

• 选择您想借的币种（如 ETH），输入借款数量。

• 选择杠杆倍数（2x/3x/4x/5x）。

• 选择保证金币种并确认保证金数量。

• 查看确认页参数：借款金额、保证金、利率、平台手续费。

• 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，选择2x杠杆，熟悉流程后再加大金额。

四、创建交易账户详解

4.1 选择借款币种

首页展示所有可借币种及对应基础利率。点击币种卡片进入创建交易账户页面。

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：受您保证金余额和平台池子剩余可借量共同限制

4.3 选择杠杆倍数

可选2x、3x、4x、5x。倍数越高，借入资金越多，保证金越少，但对应的日利息也越高。实际日利率 = 基础利率 × 杠杆倍数。

4.4 选择保证金币种

点击「选择保证金币种」，选择链和币种，输入数量。保证金 = 借款金额 ÷ 杠杆倍数。最低保证金为 100 USDT 等值。

4.5 借款确认

确认页显示：借款金额、保证金数量、杠杆倍数、借款小时利率、预计每日利息、平台手续费。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。利息持续累加会推高风险率，达到 91% 时触发清算。

五、交易操作

5.1 买入代币

进入交易账户 → 点击「交易」 → 选择「买入」标签 → 选择支付币种和目标币种 → 输入金额 → 系统自动显示Dex报价、最小获得数量、滑点容忍度、手续费和网络费 → 确认交易。交易通过Uniswap执行。

5.2 卖出代币

切换到「卖出」标签，操作流程与买入相同。卖出后资金保留在交易账户内。

5.3 K线与持仓

在账户总览页点击当前持仓币种，可查看K线图、损益、回报率、平均成本价和最近交易记录。可直接点击「追加买入」或「卖出」操作。

重要： 借款的资金锁定在交易账户中，不可直接提现。仅支持在Uniswap上交易指定交易对。

六、保证金管理

6.1 追加保证金

当风险率升高时，可追加保证金降低风险。在账户总览 > 点击「追加保证金」 → 输入数量 → 系统实时显示追加后预估风险率变化 → 确认。

6.2 提取保证金

在账户总览 > 点击「提取保证金」，输入取回数量。系统显示提取后风险率变化。需勾选风险确认后方可执行。

警告： 提取保证金会提高风险率。请确保提取后风险率仍在安全范围内。

七、账户关闭与结算

7.1 主动关闭交易账户

进入账户总览 → 点击「关闭账户」 → 系统显示结算摘要和资产清算清单 → 确认后点击「确认」。此操作不可撤销。

7.2 结算流程

关闭时，所有非借款币种资产通过Uniswap自动兑换为借款币种。偿还本金和累计利息后，剩余余额退还用户。最终盈亏仅在结算完全完成后显示。

7.3 为什么关闭时不显示最终盈亏

因为关闭账户时需要将所有非借款币种资产通过Uniswap逐一兑换，每笔兑换的实际成交价格取决于当时的市场深度和流动性，无法在执行前准确预估。为避免给出不准确的数字误导您的判断，系统仅在结算完全完成后才展示最终盈亏。

7.4 多币种兑换损耗

如果您持有多种既非借款币种也非保证金币种的代币，系统可能需要执行多次兑换路径，每次兑换均会产生Uniswap交易手续费和滑点损耗。持仓币种越多、流动性越低，累计损耗越大。建议您在关闭账户前，手动将持仓整理为借款币种，减少兑换次数。

八、存入与提取

8.1 存入资产

• 点击「存入」，输入金额和币种。

• 选择支付钱包和账户。

• 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，请确保钱包有足够 ETH（Arbitrum链）。

8.2 提取资产

• 点击「提取」，选择币种和网络。

• 输入金额（不超过可提取余额）。

• 选择收款钱包账户，确认提取信息。

• 输入交易密码，完成提取。

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。

九、风控与清算机制

9.1 健康状态说明

状态	风险率范围	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，建议追加保证金或卖出部分持仓。
高风险	81% - 90%	极高风险！请立即追加保证金或减仓。

9.2 清算流程

当风险率 ≥ 91% 时（包括因利息累计导致），智能合约自动执行：

• 自动卖出您的所有持仓，通过Uniswap兑换为借款币种。

• 偿还借款本金。

• 扣除累计利息。

• 扣除清算费用。

• 剩余资产进入平台风险准备账户。

警告： 清算不可逆。清算后剩余资产将进入风险准备账户，不会退还给用户。在极端行情下，抵押资产可能不足以覆盖全部债务。

9.3 如何避免清算

• 使用较低杠杆倍数（2x或3x），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保证金或卖出部分持仓。

• 关注利息累积对风险率的影响，长时间不操作也可能触发清算。

• 定期查看交易账户状态，特别是行情波动较大时。

十、预警与通知机制

AOU 平台提供完善的风险预警系统。

10.1 预警触发条件

预警等级	触发条件	通知方式
关注（黄色）	风险率达到 71%	平台推送消息
高风险（红色）	风险率达到 81%	平台推送 + 页面强提示
紧急警告	风险率达到 86%	平台推送 + 页面强提示
清算执行	风险率 ≥ 91%	系统自动清算 + 推送通知

10.2 通知方式

目前平台通过推送消息发送风险预警。请确保开启了 AOU DApp 的通知权限。

免责声明： 通知仅作风险提示，平台无法保证通知及时送达。用户应主动关注交易账户状态，不应完全依赖推送通知。

十一、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，实际日利率=基础利率×杠杆倍数	见币种利率页面	平台
平台手续费	创建交易账户时一次性收取	从借款金额扣除	平台
交易手续费	在Uniswap执行交易时产生	按Uniswap协议标准	Uniswap
网络费 (Gas)	每笔链上交易的矿工费	动态变化	Arbitrum网络
合约部署费	首次存入时部署智能合约	一次性	Arbitrum网络
清算费用	触发清算时从持仓资产扣除	待确认	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，具体利率以页面实时显示为准。

十二、价格数据来源

AOU 超额借贷产品中涉及的所有资产价格均来源于第三方去中心化价格预言机（Oracle）。

12.1 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聚合价格，避免单一交易所价格操纵对用户造成影响。

12.2 价格更新机制

• 平台使用去中心化预言机提供的聚合价格。

• 价格数据实时更新，确保风险率计算的准确性。

• 在极端市场条件下，预言机可能存在短暂延迟。

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。

十三、安全与授权

13.1 智能合约安全

您的保证金和借入资产由部署在 Arbitrum 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。

13.2 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。

13.3 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。

13.4 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。

十四、常见问题 (FAQ)

借款类

Q: 我最多能借多少？

A: 最多可借保证金价值的5倍。5倍杠杆风险极高，建议新手从2x开始。

Q: 借款有期限吗？

A: 没有固定期限。但利息会持续累计，当风险率达到 91% 时触发清算。

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。

交易类

Q: 交易账户内的资金可以提现吗？

A: 不可以。借入资金锁定在智能合约中，仅可在Uniswap上交易。如需取回资金，请关闭交易账户。

Q: 交易失败后我的资产安全吗？

A: 安全的。链上交易失败时所有操作回滚，资产不会变化。但已消耗的网络费不会退还。

清算类

Q: 被清算后资产怎么处理？

A: 清算后，系统扣除借款本金、累计利息和清算费用。剩余资产进入平台风险准备账户，不退还用户。

Q: 为什么关闭账户时不显示最终盈亏？

A: 因为结算时需要通过Uniswap逐一兑换资产，实际成交价无法预估。最终盈亏仅在结算完全完成后显示。

费用类

Q: 利息怎么计算？

A: 每小时计息一次，实际日利率 = 基础利率 × 杠杆倍数。利息按单利方式计算，不足1小时扙1小时计。利息自动累加到债务。

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。

操作类

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。预言机合约地址公开可查。

十五、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《超额借贷服务主协议》《风险披露声明》《隐私政策》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，请联系 AOU 客服团队

AOU 生态团队 | v1.0

AOU Ecosystem · Overlending

Help Center

Glossary · User Guide · Rules · FAQ

Version: v1.0 | Updated: April 2026

Table of Contents

1. Glossary

2. Product Overview & Core Parameters

3. Quick Start Guide

4. Creating a Trading Account

5. Trading Operations

6. Margin Management

7. Account Closure & Settlement

8. Deposits & Withdrawals

9. Risk Control & Liquidation

10. Alerts & Notifications

11. Fee Schedule

12. Price Data Sources

13. Security & Authorization

14. Frequently Asked Questions (FAQ)

15. Legal Agreements

1. Glossary

Below are the core terms you will encounter when using the AOU Overlending service. We recommend reading these carefully before getting started.

Term	Definition
Overlending	A service where users deposit Margin and borrow digital assets at 2x to 5x leverage. Borrowed assets are locked in an on-chain smart contract and can only be traded on Uniswap — they cannot be withdrawn directly.
Trading Account	A smart contract deployed on the Arbitrum network for each borrowing transaction. The user’s Margin and borrowed assets are custodied within it. ID format: e.g., #VLT 8829-X01.
Margin	Digital assets deposited into the smart contract as collateral. Margin = Borrowed Amount ÷ Leverage Multiplier.
Leverage Multiplier	The ratio of borrowed amount to Margin. Options: 2x to 5x. Higher leverage means more borrowed funds but also higher daily interest and greater risk.
Borrowed Amount	The token type and quantity lent to the user. This is the loan principal, excluding interest. The user must repay principal + accrued interest.
Risk Ratio	The core metric measuring Trading Account safety. Risk Ratio = (Accumulated Losses + Accrued Interest) ÷ Initial Margin × 100%. Liquidation is triggered at 91%.
Liquidation	When Risk Ratio ≥ 91%, the smart contract automatically sells all positions, converts them to the borrowed token, deducts principal, interest, and fees. Remaining assets go to the Risk Reserve Account.
Risk Reserve Account	A dedicated account that receives remaining assets after Liquidation. Used to cover shortfalls in extreme market conditions and maintain platform stability.
Health Status	System’s risk assessment. Four levels: Safe (0%-70%), Caution (71%-80%), High Risk (81%-90%), Liquidation (≥91%).
Base Rate	The unified daily interest rate for each borrowable token. Actual Daily Rate = Base Rate × Leverage Multiplier. Interest is calculated hourly on a simple interest basis.
Smart Contract	An automated program deployed on the Arbitrum chain. Margin and lending logic are managed by the contract, requiring no third-party trust.
Network Fee (Gas)	Transaction fees paid to Arbitrum network validators. Not a platform fee.
Approval Request	Standard blockchain security mechanism allowing the smart contract to operate tokens within a specified limit. Does not directly transfer your assets.
Platform Fee	Service fee charged by the Overlending platform, deducted once from the borrowed amount when creating a Trading Account.
Unrealized P&L	Unrealized profit or loss on positions held in the Trading Account. Only becomes realized P&L when positions are sold or the account is closed.
Add Margin	Depositing additional Margin to an existing Trading Account to lower the Risk Ratio and reduce liquidation risk.
Withdraw Margin	Removing part of the Margin from a Trading Account. This increases the Risk Ratio and liquidation risk.
Network Type	The blockchain network where assets reside. This service is currently deployed on Arbitrum (ARB).

Tip: Bookmark this page for quick reference while using the service.

2. Product Overview & Core Parameters

2.1 What is AOU Overlending?

AOU Overlending is a decentralized leveraged lending service powered by smart contracts. You deposit Margin and can borrow 2x to 5x your Margin value in digital assets to trade on Uniswap. Borrowed assets are locked in the Trading Account smart contract — you have trading rights but cannot withdraw them. All operations are transparent and on-chain. No KYC required.

2.2 Core Parameters

Parameter	Value	Description
Leverage Range	2x – 5x	Minimum 2x, maximum 5x
Liquidation Threshold	91%	Risk Ratio that triggers forced liquidation
Minimum Margin	100 USDT equivalent	Cannot create account below this amount
Interest Calculation	Hourly (Simple Interest)	Fractions of an hour rounded up to 1 hour
Interest Model	Base Rate × Leverage	Each token has a unified base rate; see app for details
Margin Calculation	Borrowed Amount ÷ Leverage	E.g.: Borrow 10,000 at 5x, Margin = 2,000
Supported Network	Arbitrum (ARB)	Currently Arbitrum only
Trading Platform	Uniswap	Specific trading pairs shown in the app
Post-Liquidation Remainder	Risk Reserve Account	Not returned to user

2.3 Margin Calculation Example

Suppose you want to borrow 10,000 USDT worth of ETH:

• 2x leverage: Margin = 10,000 ÷ 2 = 5,000 USDT

• 3x leverage: Margin = 10,000 ÷ 3 ≈ 3,333 USDT

• 5x leverage: Margin = 10,000 ÷ 5 = 2,000 USDT

Important: Higher leverage means less Margin but greater risk. Beginners should start with lower leverage.

3. Quick Start Guide

Complete steps for first-time users:

• Open a supported wallet, access the AOU Ecosystem DApp, and tap “Overlending.”

• Tap “Create Trading Account.”

• Select the token you wish to borrow (e.g., ETH) and enter the amount.

• Select your leverage multiplier (2x/3x/4x/5x).

• Choose a Margin token and confirm the Margin amount.

• Review the confirmation page: borrowed amount, Margin, interest rate, platform fee.

• Tap “Confirm Borrow.” After approval, funds arrive instantly.

Beginner Tip: Start small with 2x leverage for your first borrow. Increase amounts once you’re comfortable with the process.

4. Creating a Trading Account

4.1 Selecting the Borrowed Token

The homepage displays all borrowable tokens and their base interest rates. Tap a token card to enter the account creation page.

4.2 Borrow Amount & Limits

Enter the amount in the “I want to borrow” field. The system validates:

• Minimum: 100 USDT equivalent

• Maximum: Limited by your Margin balance and the platform’s available lending pool

4.3 Selecting Leverage

Choose from 2x, 3x, 4x, or 5x. Higher leverage means more borrowed funds but less Margin and higher daily interest. Actual Daily Rate = Base Rate × Leverage Multiplier.

4.4 Selecting Margin Token

Tap “Select Margin Token,” choose the chain and token, and enter the amount. Margin = Borrowed Amount ÷ Leverage Multiplier. Minimum Margin is 100 USDT equivalent.

4.5 Confirmation

The confirmation page shows: borrowed amount, Margin quantity, leverage, hourly interest rate, estimated daily interest, and platform fee. Review carefully before tapping “Confirm Borrow.”

Important: Interest begins accruing hourly immediately after borrowing. Continuous interest accumulation increases the Risk Ratio. Liquidation is triggered at 91%.

5. Trading Operations

5.1 Buying Tokens

Enter Trading Account → Tap “Trade” → Select “Buy” tab → Choose payment and target tokens → Enter amount → System displays DEX quote, minimum received, slippage tolerance, fees → Confirm trade. Trades are executed via Uniswap.

5.2 Selling Tokens

Switch to the “Sell” tab. The process is identical to buying. Proceeds remain in the Trading Account.

5.3 Charts & Positions

In the Account Overview, tap a held token to view its K-line chart, P&L, return rate, average cost, and recent trades. You can directly tap “Buy More” or “Sell” from this view.

Important: Borrowed funds are locked in the Trading Account and cannot be withdrawn. Only designated trading pairs on Uniswap are supported.

6. Margin Management

6.1 Adding Margin

When the Risk Ratio rises, add Margin to reduce risk. Go to Account Overview > Tap “Add Margin” → Enter amount → System shows projected Risk Ratio change → Confirm.

6.2 Withdrawing Margin

Go to Account Overview > Tap “Withdraw Margin” → Enter amount. System shows the resulting Risk Ratio change. You must check the risk acknowledgment box to proceed.

Warning: Withdrawing Margin increases the Risk Ratio. Ensure it remains within a safe range after withdrawal.

7. Account Closure & Settlement

7.1 Voluntarily Closing a Trading Account

Go to Account Overview → Tap “Close Account” → System displays settlement summary and asset liquidation list → Confirm by tapping “Confirm.” This action is irreversible.

7.2 Settlement Process

Upon closure, all non-borrowed-token assets are automatically converted to the borrowed token via Uniswap. After repaying principal and accrued interest, any remaining balance is returned to the user. Final P&L is displayed only after settlement is fully completed.

7.3 Why Final P&L Is Not Shown at Closure

Because the system needs to convert all non-borrowed-token assets via Uniswap one by one, and each conversion’s actual execution price depends on real-time market depth and liquidity — it cannot be accurately estimated beforehand. To avoid showing misleading figures, the system only displays final P&L after settlement is fully confirmed on-chain.

7.4 Multi-Token Conversion Costs

If you hold multiple tokens that are neither the borrowed token nor the Margin token, the system may need to execute multiple conversion paths. Each conversion incurs Uniswap trading fees and slippage. More token types and lower liquidity mean greater cumulative costs. We recommend manually consolidating your positions into the borrowed token before closing the account to minimize conversion steps.

8. Deposits & Withdrawals

8.1 Depositing Assets

• Tap “Deposit,” enter the amount and select the token.

• Choose your payment wallet and account.

• Confirm the transaction and wait for on-chain confirmation.

First Deposit: The system deploys a dedicated smart contract, requiring an additional network fee. Ensure your wallet has sufficient ETH (on Arbitrum).

8.2 Withdrawing Assets

• Tap “Withdraw,” select the token and network.

• Enter the amount (cannot exceed available balance).

• Select the receiving wallet account and confirm withdrawal details.

• Enter your transaction password to complete.

Network fees are deducted from the withdrawal. Actual received = Withdrawal amount - Network fee. Estimated arrival: ~5 minutes.

9. Risk Control & Liquidation

9.1 Health Status

Status	Risk Ratio Range	Recommended Action
Safe	0% - 70%	Healthy. No action needed. Monitor market conditions periodically.
Caution	71% - 80%	Risk rising. Consider adding Margin or selling some positions.
High Risk	81% - 90%	Extremely high risk! Add Margin or reduce positions immediately.

9.2 Liquidation Process

When Risk Ratio ≥ 91% (including from interest accumulation), the smart contract automatically:

• Sells all positions via Uniswap and converts them to the borrowed token.

• Repays loan principal.

• Deducts accrued interest.

• Deducts liquidation fees.

• Deposits remaining assets into the Risk Reserve Account.

Warning: Liquidation is irreversible. Remaining assets after liquidation go to the Risk Reserve Account and are NOT returned to the user. In extreme conditions, collateral may not cover the full debt.

9.3 How to Avoid Liquidation

• Use lower leverage (2x or 3x) to maintain a larger buffer.

• Enable DApp push notifications to receive risk alerts promptly.

• Add Margin or sell positions when markets are volatile.

• Be aware that interest accumulation alone can trigger liquidation over time.

• Check your Trading Account status regularly, especially during high volatility.

10. Alerts & Notifications

AOU provides a comprehensive risk alert system.

10.1 Alert Trigger Conditions

Alert Level	Trigger Condition	Notification Method
Caution (Yellow)	Risk Ratio reaches 71%	Platform push notification
High Risk (Red)	Risk Ratio reaches 81%	Push notification + in-app warning
Urgent Warning	Risk Ratio reaches 86%	Push notification + in-app warning
Liquidation	Risk Ratio ≥ 91%	Auto-liquidation + push notification

10.2 Notification Method

Risk alerts are currently delivered via push notifications. Please ensure you have enabled notification permissions for the AOU DApp.

Disclaimer: Notifications are advisory only. The platform cannot guarantee timely delivery. Users should actively monitor their Trading Account status and not rely solely on push notifications.

11. Fee Schedule

Fee Type	Description	Rate/Amount	Charged By
Borrowing Interest	Hourly; Actual Daily Rate = Base Rate × Leverage	See token rate page	Platform
Platform Fee	One-time fee when creating a Trading Account	Deducted from borrowed amount	Platform
Trading Fee	Incurred when executing trades on Uniswap	Per Uniswap protocol	Uniswap
Network Fee (Gas)	Miner fee for each on-chain transaction	Dynamic	Arbitrum Network
Contract Deployment	One-time fee for first deposit to deploy smart contract	One-time	Arbitrum Network
Liquidation Fee	Deducted from positions upon liquidation	TBD	Platform

Note: Interest rates may be adjusted based on market conditions and platform strategy. Actual rates are shown in the app.

12. Price Data Sources

All asset prices used in the AOU Overlending service are sourced from third-party decentralized price oracles.

12.1 What Is a Price Oracle?

A price oracle is infrastructure that transmits off-chain market price data to on-chain smart contracts. It aggregates prices from multiple major exchanges to prevent single-exchange price manipulation.

12.2 Price Update Mechanism

• The platform uses aggregated prices from decentralized oracles, sourced from multiple major exchanges.

• Price data is updated in real time to ensure accurate Risk Ratio calculations.

• In extreme market conditions, oracles may experience brief delays.

Transparency: Oracle contract addresses are publicly viewable. You can independently verify price data on a blockchain explorer.

13. Security & Authorization

13.1 Smart Contract Security

Your Margin and borrowed assets are managed by smart contracts deployed on the Arbitrum chain. Contract code is publicly auditable. The platform cannot arbitrarily access your assets — all operations require wallet signature confirmation.

13.2 Authorization Mechanism

When using a token for the first time, you must approve the smart contract to operate that token (ERC-20 Approve). This is a standard blockchain security mechanism that does not directly transfer assets and can be revoked at any time in your wallet.

13.3 Transaction Password

A transaction password is required when withdrawing assets, confirming trade authorizations, and closing Trading Accounts. Keep it secure and never share it with anyone.

13.4 Network Selection Safety

Important: Always verify you have selected the correct network when depositing or withdrawing. Sending assets to the wrong network may result in permanent loss.

14. Frequently Asked Questions (FAQ)

Borrowing

Q: What is the maximum I can borrow?

A: Up to 5x your Margin value. However, 5x leverage carries extremely high risk. Beginners should start with 2x.

Q: Is there a loan term?

A: No fixed term. However, interest accrues continuously. When the Risk Ratio reaches 91%, liquidation is triggered.

Q: How long until borrowed funds arrive?

A: Funds arrive instantly after on-chain confirmation, typically a few minutes. May take longer during network congestion.

Trading

Q: Can I withdraw funds from the Trading Account?

A: No. Borrowed funds are locked in the smart contract and can only be traded on Uniswap. To retrieve funds, close the Trading Account.

Q: Are my assets safe if a trade fails?

A: Yes. Failed on-chain transactions are rolled back and your assets remain unchanged. However, consumed network fees are not refunded.

Liquidation

Q: What happens to my assets after liquidation?

A: After liquidation, the system deducts loan principal, accrued interest, and liquidation fees. Remaining assets go to the Risk Reserve Account and are not returned to the user.

Q: Why is final P&L not shown when closing an account?

A: Because assets must be converted via Uniswap one by one, and actual execution prices cannot be predicted. Final P&L is shown only after settlement is fully completed on-chain.

Fees

Q: How is interest calculated?

A: Interest is calculated hourly. Actual Daily Rate = Base Rate × Leverage Multiplier. Simple interest, fractions of an hour rounded up. Interest is automatically added to your debt.

Q: What is the contract deployment fee?

A: A one-time network fee for deploying your dedicated smart contract upon first deposit. Not charged again for subsequent operations.

Operations

Q: Is the approval request safe?

A: Yes. Approval is a standard blockchain mechanism that does not directly transfer assets. You can revoke it at any time in your wallet.

Q: Can I recover assets sent to the wrong network?

A: Assets may be unrecoverable. Always double-check the network before transacting. Contact support immediately if this occurs.

Q: Where does the platform get its price data?

A: All prices come from third-party decentralized oracles that aggregate weighted averages from multiple major exchanges. Oracle contract addresses are publicly verifiable.

15. Legal Agreements

For detailed terms of service, risk disclosure, and privacy policy, please refer to the three independent legal documents published by the platform: the Overlending Service Agreement, Risk Disclosure Statement, and Privacy Policy. By using this service, you confirm that you have read and agreed to all of the above agreements.

If you have any questions, please contact the AOU support team at support@aoulink.com

AOU Ecosystem Team | v1.0

OU TRADING LIMITED

超额借贷服务主协议

最后更新日期：[____]

序言

本超额借贷服务主协议（以下简称“本协议”）由OU TRADING LIMITED（一家根据美国特拉华州法律注册成立的公司，以下简称“公司”“我们”）与您（超额借贷服务的用户，以下简称“用户”“您”）共同缔结。

通过访问或使用超额借贷服务，您确认已阅读、理解并同意受本协议约束。如不同意，请勿使用本服务。

第一条：定义

1.1 “超额借贷服务”指公司提供的去中心化杠杆借贷服务，允许用户存入保证金后以2至5倍杠杆借入数字资产，通过部署在Arbitrum网络上的智能合约在Uniswap上进行交易。

1.2 “交易账户”指系统为每笔借贷交易在Arbitrum网络上部署的智能合约，用户的保证金和借入资产均托管于其中。

1.3 “保证金”指用户存入智能合约作为借款抵押的数字资产。保证金 = 借款金额 ÷ 杠杆倍数。

1.4 “清算”指当风险率达到或超过91%时，智能合约自动强制关闭交易账户内所有仓位。

1.5 “风险率”指累计亏损和应计利息与初始保证金的比率。风险率 = （累计亏损 + 累计利息）÷ 初始保证金 × 100%。

1.6 “风险准备账户”指清算执行后剩余资产存入的账户。

第二条：服务范围

2.1 公司提供技术平台，使用户能够通过部署在Arbitrum网络上的智能合约进行数字资产的杠杆借贷。公司不提供投资建议、资产管理或传统意义上的托管服务。

2.2 借入资产被锁定在交易账户智能合约内，仅可用于在Uniswap上交易指定交易对。具体支持的交易对以应用内显示为准，可能不时更新。借入资产不可从交易账户中提取或转出。

2.3 公司保留随时修改支持的代币、交易对、杠杆倍数、利率和费用标准的权利，并将提前合理通知用户。

第三条：借款与利息

3.1 利息按单利方法计算，每小时计息一次。不足1小时扙1小时计算。利息每小时自动计入用户未偿债务。

3.2 每种可借代币有统一的基础利率。实际日利率 = 基础利率 × 杠杆倍数。例如，USDT的基础利率为0.1%/天，用户选择5倍杠杆，则实际日利率为0.5%/天。各代币的具体基础利率以应用内显示为准。公司保留提前通知后调整基础利率的权利。

3.3 最低保证金要求为100 USDT等值。保证金计算方式：保证金 = 借款金额 ÷ 杠杆倍数。用户可选择的杠杆范围为2倍（最低）至5倍（最高）。

第四条：清算

4.1 当交易账户的风险率达到或超过91%时，智能合约将自动执行清算。此过程完全自动化，用户和公司均无法手动覆盖或停止。

4.2 清算时，所有持仓通过Uniswap按市价卖出并兑换为借款币种，按以下顺序扣除：(a) 借款本金；(b) 累计利息；(c) 清算费用和网络费。

4.3 清算后的剩余资产将存入风险准备账户，不会退还给用户。用户确认并接受此安排。

4.4 在极端市场条件下，清算所得可能不足以完全覆盖借款本金和累计利息。

第五条：费用

5.1 平台手续费：创建交易账户时一次性收取的服务费，从借款金额中扣除。

5.2 交易手续费：由Uniswap协议在执行交易时收取，非公司收取。

5.3 网络费（Gas Fee）：由Arbitrum网络验证者收取，非公司收取。费用随网络拥堵程度波动。

第六条：账户关闭与结算

6.1 用户可随时自愿关闭交易账户。此操作不可撤销。

6.2 关闭时，所有非借款币种资产通过Uniswap自动兑换为借款币种。偿还本金和累计利息后，剩余余额退还用户。

6.3 当用户持有多种既非借款币种也非保证金币种的代币时，系统可能需要执行多次兑换路径。每次兑换均会产生Uniswap交易手续费和滑点损耗。持仓币种越多、流动性越低，累计损耗越大，可能导致实际退还金额显著低于预期。

6.4 最终盈亏基于链上实际执行价格确定，仅在结算完全完成后显示。

第七条：用户声明与保证

7.1 您声明您已年满18周岁（或您所在司法管辖区的法定成年年龄），并有法律能力缔结本协议。

7.2 您声明您不是任何受限司法管辖区的居民、公民或位于其中的人士，包括但不限于：美国（适1933年《证券法》Regulation S定义的美国人士）、中华人民共和国、朝鲜、伊朗、叙利亚、古巴、克里米亚、顿涅茨克、卢甘斯克，或任何其他禁止使用杠杆数字资产服务的司法管辖区。

7.3 您确认已阅读并理解《风险披露声明》，并接受与超额借贷服务相关的所有风险。

7.4 您全权负责确定您对本服务的使用是否符合您所在司法管辖区的所有适用法律法规，包括税务义务。

第八条：责任限制

本服务按“现状”和“可用状态”提供，不作任何明示或暗示的保证。

在适用法律允许的最大范围内，公司不对任何间接、附带、特殊、后果性或惩罚性损害赔忟承担责任。

在任何情况下，公司的总累计责任不超过您在索赔前十二（12）个月内实际支付的平台手续费总额。

第九条：赔偿

您同意对OU TRADING LIMITED及其关联方、高管、董事、员工和代理人进行赔偿、抵御并使其免受因以下原因产生的任何索赔、责任、损害、损失和费用：(a) 您对服务的使用；(b) 您违反本协议；(c) 您违反任何适用法律法规；(d) 因您的交易活动产生的任何第三方索赔。

第十条：适用法律与争议解决

本协议受美国特拉华州法律管辖并依其解释，不考虑其法律冲突原则。

因本协议产生的或与之相关的任何争议，应由美国仲裁协会（AAA）根据其《商业仲裁规则》进行具有约束力的仲裁。仲裁以英文进行，仲裁地为美国特拉华州威明顿。

集体诉讼豁免：您同意任何争议解决程序仅以个人身份进行，而非以集体、合并或代表诉讼的形式。

第十一条：修订

公司保留随时修订本协议的权利。重大变更将至少提前三十（30）天通过应用内通知或电子邮件告知用户。

您在收到通知后继续使用服务即表示接受修订后的协议。如不同意，您必须停止使用服务并关闭所有交易账户。

第十二条：其他

可分割性：如本协议任何条款被认定无效，其余条款仍具有完全效力。

完整协议：本协议连同《风险披露声明》和《隐私政策》，构成您与公司之间的完整协议。

语言：本协议英文版本与中文版本如有冲突，以英文版本为准。

不弃权：公司未能执行本协议任何权利或条款不构成对该权利或条款的放弃。

OU TRADING LIMITED

Overlending Service Agreement

Last Updated: May 1, 2026

PREAMBLE

This Overlending Service Agreement (this "Agreement") is entered into between OU TRADING LIMITED, a company incorporated under the laws of the State of California, United States of America (hereinafter referred to as the "Company", "we", "us", or "our"), and you, the user of the Overlending Service (hereinafter referred to as "User", "you", or "your").

By accessing or using the Overlending Service, you acknowledge that you have read, understood, and agree to be bound by this Agreement. If you do not agree, you must not use the Service.

ARTICLE 1: DEFINITIONS

1.1 "Overlending Service" refers to the decentralized leveraged lending service provided by the Company, allowing Users to deposit Margin and borrow digital assets at 2x to 5x leverage for trading on Uniswap via smart contracts deployed on the Arbitrum network.

1.2 "Trading Account" refers to the on-chain smart contract deployed on the Arbitrum network for each borrowing transaction, within which the User’s Margin and borrowed assets are custodied.

1.3 "Margin" refers to the digital assets deposited by the User into the smart contract as collateral for the borrowing. Margin = Borrowed Amount ÷ Leverage Multiplier.

1.4 "Liquidation" refers to the automatic forced closure of all positions in a Trading Account by the smart contract when the Risk Ratio reaches or exceeds 91%.

1.5 "Risk Ratio" means the ratio of accumulated losses and accrued interest to the initial Margin, expressed as a percentage. Risk Ratio = (Accumulated Losses + Accrued Interest) ÷ Initial Margin × 100%.

1.6 "Risk Reserve Account" refers to the account into which remaining assets are deposited after Liquidation is executed.

ARTICLE 2: SCOPE OF SERVICE

2.1 The Company provides a technology platform that enables Users to engage in leveraged borrowing of digital assets through smart contracts deployed on the Arbitrum network. The Company does not provide investment advice, portfolio management, or custodial services in the traditional sense.

2.2 Borrowed assets are locked within the Trading Account smart contract and may only be used for trading designated trading pairs on Uniswap. The specific supported trading pairs are listed in the application and may be updated from time to time. Borrowed assets cannot be withdrawn or transferred out of the Trading Account.

2.3 The Company reserves the right to modify supported tokens, trading pairs, leverage ratios, interest rates, and fee structures at any time, with reasonable prior notice to Users.

ARTICLE 3: BORROWING AND INTEREST

3.1 Interest is calculated on a simple interest basis, accruing hourly. Any fraction of an hour shall be rounded up to one full hour. Interest is automatically added to the User’s outstanding debt each hour.

3.2 Each borrowable token has a unified base interest rate. The actual daily interest rate = Base Rate × Leverage Multiplier. For example, if the base rate for USDT is 0.1%/day and the User selects 5x leverage, the actual daily interest rate is 0.5%/day. The specific base rates for each token are listed in the application. The Company reserves the right to adjust base rates with prior notice.

3.3 The minimum Margin requirement is 100 USDT equivalent. Margin is calculated as: Margin = Borrowed Amount ÷ Leverage Multiplier. Users may select leverage between 2x (minimum) and 5x (maximum).

ARTICLE 4: LIQUIDATION

4.1 When the Risk Ratio of a Trading Account reaches or exceeds 91%, the smart contract shall automatically execute Liquidation. This process is fully automated and cannot be manually overridden or stopped by either the User or the Company.

4.2 Upon Liquidation, all positions are sold at market price through Uniswap and converted to the borrowed token. The proceeds are applied in the following order: (a) repayment of loan principal; (b) accrued interest; (c) liquidation fees and network fees.

4.3 Any remaining assets after Liquidation shall be deposited into the Risk Reserve Account and shall NOT be returned to the User. The User acknowledges and accepts this arrangement.

4.4 In extreme market conditions, the Liquidation proceeds may be insufficient to fully cover the loan principal and accrued interest.

ARTICLE 5: FEES

5.1 Platform Fee: A one-time service fee charged upon creation of a Trading Account, deducted from the borrowed amount.

5.2 Trading Fees: Charged by Uniswap protocol when executing trades, not by the Company.

5.3 Network Fees (Gas Fees): Charged by Arbitrum network validators, not by the Company. Fees fluctuate based on network congestion.

ARTICLE 6: ACCOUNT CLOSURE AND SETTLEMENT

6.1 The User may voluntarily close a Trading Account at any time. This action is irreversible.

6.2 Upon closure, all non-borrowed-token assets are automatically converted to the borrowed token via Uniswap. After repayment of principal and accrued interest, any remaining balance is returned to the User.

6.3 When the User holds multiple token types that are neither the borrowed token nor the Margin token, the system may need to execute multiple conversion paths. Each conversion incurs Uniswap trading fees and slippage costs. The more token types held and the lower their liquidity, the greater the cumulative costs, which may result in actual returned amounts being significantly lower than expected.

6.4 Final profit/loss is determined based on actual on-chain execution prices and is displayed only after settlement is fully completed.

ARTICLE 7: USER REPRESENTATIONS AND WARRANTIES

7.1 You represent that you are at least 18 years of age (or the age of legal majority in your jurisdiction) and have the legal capacity to enter into this Agreement.

7.2 You represent that you are NOT a resident, citizen, or person located in any Restricted Jurisdiction, including but not limited to: the United States (for persons who are U.S. persons as defined under Regulation S of the Securities Act of 1933), the People’s Republic of China, North Korea, Iran, Syria, Cuba, Crimea, Donetsk, Luhansk, or any other jurisdiction where the use of leveraged digital asset services is prohibited by applicable law.

7.3 You acknowledge that you have read and understood the Risk Disclosure Statement and accept all risks associated with the Overlending Service.

7.4 You are solely responsible for determining whether your use of the Service complies with all applicable laws and regulations in your jurisdiction, including tax obligations.

ARTICLE 8: LIMITATION OF LIABILITY

8.1 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.

8.2 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE COMPANY SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS, LOSS OF DATA, OR LOSS OF DIGITAL ASSETS, ARISING FROM YOUR USE OF THE SERVICE.

8.3 IN NO EVENT SHALL THE COMPANY’S TOTAL AGGREGATE LIABILITY EXCEED THE AMOUNT OF PLATFORM FEES ACTUALLY PAID BY YOU IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM.

ARTICLE 9: INDEMNIFICATION

9.1 You agree to indemnify, defend, and hold harmless OU TRADING LIMITED, its affiliates, officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, and expenses arising from: (a) your use of the Service; (b) your violation of this Agreement; (c) your violation of any applicable law or regulation; (d) any third-party claims arising from your trading activities.

ARTICLE 10: GOVERNING LAW AND DISPUTE RESOLUTION

10.1 This Agreement shall be governed by and construed in accordance with the laws of the State of California, United States of America, without regard to its conflict of law principles.

10.2 Any dispute arising out of or in connection with this Agreement shall be finally settled by binding arbitration administered by the American Arbitration Association ("AAA") under its Commercial Arbitration Rules. The arbitration shall be conducted in English, and the seat of arbitration shall be Los Angeles, California, United States.

10.3 CLASS ACTION WAIVER: YOU AGREE THAT ANY DISPUTE RESOLUTION PROCEEDINGS WILL BE CONDUCTED ONLY ON AN INDIVIDUAL BASIS AND NOT IN A CLASS, CONSOLIDATED, OR REPRESENTATIVE ACTION.

ARTICLE 11: AMENDMENTS

11.1 The Company reserves the right to amend this Agreement at any time. Material changes will be notified to Users via in-app notification or email at least thirty (30) days prior to taking effect.

11.2 Your continued use of the Service after such notice constitutes acceptance of the amended Agreement. If you do not agree, you must cease using the Service and close all Trading Accounts.

ARTICLE 12: MISCELLANEOUS

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

12.2 Entire Agreement: This Agreement, together with the Risk Disclosure Statement and Privacy Policy, constitutes the entire agreement between you and the Company.

12.3 Language: In the event of any conflict between different language versions of this Agreement, the English version shall prevail.

12.4 No Waiver: The failure of the Company to enforce any right or provision of this Agreement shall not constitute a waiver of such right or provision.

OU TRADING LIMITED

隐私政策

最后更新日期：[____]

本隐私政策描述OU TRADING LIMITED（“公司”“我们”）如何收集、使用、共享和保护与运行在Arbitrum网络上的超额借贷服务相关的信息。本政策适用于全球所有用户。

1. 我们收集的信息

1.1 您提供的信息

用于访问服务的钱包地址（公钥）；交易密码（仅以加密形式存储在您的设备上）；如果您联系客服，您提供的联系信息。

1.2 自动收集的信息

设备信息（设备类型、操作系统、应用版本）；IP地址和大致地理位置（国家/地区级别）；使用数据（访问的功能、交易类型、时间戳）；Push通知设备令牌。

1.3 区块链数据

所有链上交易（存入、提取、交易、清算）记录在Arbitrum网络上，具有固有的透明性。我们不控制或拥有这些数据。任何人均可通过区块链浏览器查看链上交易。

2. 我们如何使用您的信息

我们将收集的信息用于以下目的：提供和维护超额借贷服务；发送服务通知（包括风险提醒、交易确认和账户更新）；监控和防止欺诈或未授权活动；遵守法律和监管义务（包括制裁筛查）；改进和优化服务；响应客户支持请求。

3. 我们如何共享您的信息

我们不出售您的个人信息。我们可能在以下情况下共享信息：与协助我们运营服务的服务提供商；当法律、传票或法院命令要求时，与执法或监管机构；与Arbitrum网络和Uniswap协议（注意：链上数据公开可见）；在合并、收购或资产出售时，须受保密义务约束。

4. 数据保留

我们在提供服务和实现本隐私政策所述目的所需的期限内保留您的信息。链下数据在账户关闭后至少保留五（5）年。Arbitrum网络上的链上数据因区块链技术特性而永久存在，无法删除。

5. 数据安全

我们实施行业标准的安全措施来保护您的信息，包括：传输中和静态数据加密（TLS/SSL）；安全密钥管理；定期安全评估和渗透测试；访问控制。但没有任何电子存储或传输方法是100%安全的。

6. 您的权利

根据您所在的司法管辖区，您可能拥有以下权利：

访问权：请求获取我们持有的您的个人数据副本。

更正权：请求更正不准确的个人数据。

删除权：请求删除您的个人数据，但须符合法律保留要求。注意链上数据无法删除。

选择退出权：通过应用设置选择退出非必要通知。

对于加利福尼亚州居民：根据《加利福尼亚消费者隐私法》(CCPA)，您有权了解我们收集什么个人信息、请求删除以及选择退出个人信息出售。我们不出售个人信息。

7. 国际数据传输

您的信息可能被传输到您居住国以外的国家（包括美国）进行处理。使用本服务即表示您同意将您的信息传输到美国和我们运营的其他司法管辖区。

8. 儿童隐私

本服务不面向18岁以下的个人。我们不会故意收集18岁以下儿童的个人信息。

9. 本政策的变更

我们可能会不时更新本隐私政策。重大变更将至少提前三十（30）天通过应用内通知告知您。

10. 联系我们

如您对本隐私政策有疑问或希望行使您的权利，请联系我们：

OU TRADING LIMITED

电子邮件：support@aoulink.com

地址：[美国特拉华州威明顿 ____]

OU TRADING LIMITED

Privacy Policy

Last Updated: May 1, 2026

This Privacy Policy describes how OU TRADING LIMITED (the "Company", "we", "us", or "our") collects, uses, shares, and protects information in connection with the Overlending Service operated on the Arbitrum network. This policy applies to all users worldwide.

1. INFORMATION WE COLLECT

1.1 Information You Provide

Wallet addresses (public keys) used to access the Service; Transaction passwords (stored only in encrypted form on your device); Contact information if you reach out to customer support.

1.2 Information Collected Automatically

Device information (device type, operating system, app version); IP address and approximate geolocation (country/region level); Usage data (features accessed, transaction types, timestamps); Push notification device tokens (for delivering service notifications).

1.3 Blockchain Data

All on-chain transactions (deposits, withdrawals, trades, liquidations) are recorded on the Arbitrum network and are inherently transparent. We do not control or own this data. Anyone can view on-chain transactions through blockchain explorers.

2. HOW WE USE YOUR INFORMATION

We use the information we collect for the following purposes: Providing and maintaining the Overlending Service; Sending service notifications including risk alerts, transaction confirmations, and account updates; Monitoring and preventing fraudulent or unauthorized activity; Complying with legal and regulatory obligations, including sanctions screening; Improving and optimizing the Service; Responding to customer support requests.

3. HOW WE SHARE YOUR INFORMATION

We do not sell your personal information. We may share information in the following circumstances: With service providers who assist us in operating the Service (e.g., cloud hosting, analytics); With law enforcement or regulatory authorities when required by law, subpoena, or court order; With the Arbitrum network and Uniswap protocol as necessary to execute transactions (note: on-chain data is publicly visible); In connection with a merger, acquisition, or sale of assets, subject to confidentiality obligations.

4. DATA RETENTION

We retain your information for as long as necessary to provide the Service and fulfill the purposes described in this Privacy Policy, or as required by law. Off-chain data is retained for a minimum of five (5) years after account closure to comply with applicable legal and regulatory requirements. On-chain data on the Arbitrum network is permanent and cannot be deleted due to the nature of blockchain technology.

5. DATA SECURITY

We implement industry-standard security measures to protect your information, including: Encryption of data in transit (TLS/SSL) and at rest; Secure key management practices; Regular security assessments and penetration testing; Access controls limiting employee access to personal data. However, no method of electronic storage or transmission is 100% secure. We cannot guarantee absolute security.

6. YOUR RIGHTS

Depending on your jurisdiction, you may have the following rights regarding your personal information:

Right to Access: Request a copy of the personal data we hold about you.

Right to Correction: Request correction of inaccurate personal data.

Right to Deletion: Request deletion of your personal data, subject to legal retention requirements. Note that on-chain data cannot be deleted.

Right to Opt-Out: Opt out of non-essential notifications via app settings.

For California residents: Under the California Consumer Privacy Act (CCPA), you have the right to know what personal information we collect, request deletion, and opt out of the sale of personal information. We do not sell personal information. To exercise your rights, contact us at the address below.

7. INTERNATIONAL DATA TRANSFERS

Your information may be transferred to and processed in countries other than your country of residence, including the United States. These countries may have different data protection laws. By using the Service, you consent to the transfer of your information to the United States and other jurisdictions where we operate.

8. CHILDREN’S PRIVACY

The Service is not directed to individuals under the age of 18. We do not knowingly collect personal information from children under 18. If you believe we have collected such information, please contact us immediately and we will take steps to delete it.

9. CHANGES TO THIS POLICY

We may update this Privacy Policy from time to time. Material changes will be notified to you via in-app notification at least thirty (30) days before taking effect. Your continued use of the Service after the effective date constitutes acceptance of the updated Privacy Policy.

10. CONTACT US

If you have questions about this Privacy Policy or wish to exercise your rights, please contact us at:

OU TRADING LIMITED

Email: support@aoulink.com

OU TRADING LIMITED

风险披露声明

最后更新日期：[____]

重要提示：本文件包含使用超额借贷服务的关键风险信息。请在继续操作前仔细阅读。

1. 杠杆风险

超额借贷服务允许您以保证金的2至5倍借入数字资产。杠杆会同时放大盈利和亏损。在极端市场条件下，您可能在短时间内损失全部保证金。

您的最大亏损可达初始保证金的100%。请仅使用您能够承受全部损失的资金。

2. 清算风险

当风险率达到或超过91%时，部署在Arbitrum网络上的智能合约将自动执行强制平仓。所有持仓将通过Uniswap按市价卖出并兑换为借款币种。此过程不可逆转，用户和公司均无法停止。

系统在风险率达到71%、81%、86%时提供分级警告，但在快速变动的市场中，风险率可能在您采取行动之前就突破清算阈值。

重要提示：清算后的剩余资产将存入风险准备账户，不会退还给用户。

3. 利息累积风险

利息按小时以单利方式计算并自动计入您的债务。实际利率 = 基础利率 × 杠杆倍数，这意味着杠杆越高，利息成本按比例越高。即使没有任何交易活动，利息也会持续累积，可能随时间推移使风险率上升至清算阈值。

4. 智能合约风险

您的保证金和借入资产由部署在Arbitrum网络上的智能合约托管。虽然智能合约已经审计，但可能包含未发现的漏洞或错误，可能导致部分或全部资产损失。公司不保证智能合约的安全性，也不对因智能合约故障造成的损失承担责任。

5. 市场波动风险

数字资产市场波动剧烈。价格可能在短时间内大幅波动。这可能导致：执行滑点超出预期；持有资产大幅贬值；风险率迅速上升触发清算。历史表现不代表未来结果。

6. 多币种兑换风险

关闭交易账户或清算时，所有非借款币种资产必须通过Uniswap兑换为借款币种。如果您持有的代币既非借款币种也非保证金币种，系统可能需要执行多次兑换路径，每次均产生交易手续费和滑点。币种越多、流动性越低，累计损耗越大，可能显著减少退还金额。

7. 网络与技术风险

Arbitrum网络可能出现拥堵、延迟或故障，可能导致交易执行延迟、存取延迟或清算执行时机偏差。公司不对因网络中断造成的损失承担责任。

8. 流动性风险

Uniswap流动性池的流动性可能不足，特别是在极端市场条件下。这可能导致无法执行交易、清算时成交价格不利、或大额交易产生显著价格影响。

9. 监管风险

各司法管辖区对数字资产和DeFi服务的监管环境正在快速演变。法律法规的变化可能影响服务在您所在司法管辖区的可用性、功能或合法性。您全权负责遵守适用法律。

10. 确认声明

通过点击“我已阅读并同意”或使用超额借贷服务，您确认并证实：

(a) 您已阅读并充分理解本风险披露声明；

(b) 您理解杠杆交易可能导致全部保证金损失；

(c) 您理解清算后的剩余资产将存入风险准备账户，不会退还给您；

(d) 您自愿承担与超额借贷服务相关的所有风险和损失；

(e) 您仅使用能够承受全部损失的资金。

OU TRADING LIMITED

Risk Disclosure Statement

Last Updated: May 1, 2026

IMPORTANT: THIS DOCUMENT CONTAINS CRITICAL INFORMATION ABOUT THE RISKS OF USING THE OVERLENDING SERVICE. PLEASE READ IT CAREFULLY BEFORE PROCEEDING.

1. LEVERAGE RISK

The Overlending Service allows you to borrow digital assets at 2x to 5x your Margin. Leverage amplifies both gains and losses. In extreme market conditions, you may lose your entire Margin in a very short period of time.

YOUR MAXIMUM LOSS CAN BE 100% OF YOUR INITIAL MARGIN. ONLY USE FUNDS YOU CAN AFFORD TO LOSE ENTIRELY.

2. LIQUIDATION RISK

When the Risk Ratio reaches or exceeds 91%, the smart contract deployed on the Arbitrum network will automatically execute forced liquidation. All positions will be sold at market price via Uniswap and converted to the borrowed token. This process is irreversible and cannot be stopped by the User or the Company.

The system provides tiered warnings at 71%, 81%, and 86% risk levels, but in rapidly moving markets, the Risk Ratio may breach the liquidation threshold before you can take action.

IMPORTANT: Any remaining assets after Liquidation will be deposited into the Risk Reserve Account and will NOT be returned to the User.

3. INTEREST ACCUMULATION RISK

Interest accrues hourly on a simple interest basis and is automatically added to your debt. The actual interest rate = Base Rate × Leverage Multiplier, meaning higher leverage results in proportionally higher interest costs. Even without any trading activity, interest continues to accumulate and may cause the Risk Ratio to rise to the liquidation threshold over time.

4. SMART CONTRACT RISK

Your Margin and borrowed assets are custodied by smart contracts deployed on the Arbitrum network. While smart contracts are audited, they may contain undiscovered vulnerabilities or bugs that could result in partial or total loss of assets. The Company does not guarantee the security of smart contracts and is not liable for losses resulting from smart contract failures.

5. MARKET VOLATILITY RISK

Digital asset markets are highly volatile. Prices may fluctuate dramatically in short periods. This may result in: execution slippage exceeding expectations; significant depreciation of held assets; rapid increase of Risk Ratio triggering liquidation. Past performance is not indicative of future results.

6. MULTI-TOKEN CONVERSION RISK

When closing a Trading Account or during liquidation, all non-borrowed-token assets must be converted to the borrowed token via Uniswap. If you hold tokens that are neither the borrowed token nor the Margin token, the system may need to execute multiple conversion paths, each incurring trading fees and slippage. More token types and lower liquidity result in greater cumulative costs, potentially significantly reducing the returned amount.

7. NETWORK AND TECHNOLOGY RISK

The Arbitrum network may experience congestion, delays, or outages, which may result in delayed transaction execution, delayed deposits/withdrawals, or timing deviations in liquidation execution. The Company is not liable for losses caused by network disruptions.

8. LIQUIDITY RISK

Uniswap liquidity pools may have insufficient liquidity, especially during extreme market conditions. This may result in inability to execute trades, unfavorable execution prices during liquidation, or significant price impact on large trades.

9. REGULATORY RISK

The regulatory landscape for digital assets and DeFi services is evolving rapidly across jurisdictions. Changes in laws or regulations may affect the availability, functionality, or legality of the Service in your jurisdiction. You are solely responsible for complying with applicable laws.

10. ACKNOWLEDGMENT

By clicking "I have read and agree" or by using the Overlending Service, you acknowledge and confirm that:

(a) You have read and fully understand this Risk Disclosure Statement;

(b) You understand that leveraged trading may result in the total loss of your Margin;

(c) You understand that any remaining assets after Liquidation will be deposited into the Risk Reserve Account and will not be returned to you;

(d) You voluntarily assume all risks and losses associated with the Overlending Service;

(e) You are using only funds you can afford to lose entirely.