Effective Date: 1 July 2026

This imToken Stake Service Agreement (this "Agreement" or these "Terms") constitutes a legally binding agreement between you (the "User" or "you") and IMTOKEN PTE. LTD. (together with its affiliates, "imToken", "we", or "us"). This Agreement governs your access to and use of imToken's non-custodial, high-performance Ethereum native staking infrastructure and related services only (the "Services") and excludes any other forms of staking services. By accessing the Services, you agree to be bound by these Terms.

1. NATURE OF SERVICE

1.1 Incorporation by Reference. These Terms are supplemental to, and incorporated into, the imToken Terms of Use and Privacy Policy (https://token.im/tos-en.html). In the event of a conflict, these Terms shall prevail solely regarding Ethereum native staking mechanics, fees, rewards, and associated liabilities.

1.2 Non-Custodial Architecture. The Services are strictly non-custodial. You retain 100% exclusive ownership, control, and possession of your private keys, withdrawal credentials, validation keys, and seed phrases.

1.3 Complete Asset Control. imToken does not take custody of, access, or hold title to your staked principal (32 ETH per Dedicated Validator). You are solely responsible for safeguarding your cryptographic keys. If you lose or compromise your keys, imToken cannot recover them, which may result in the permanent loss of your digital assets.

1.4 Isolation of Protocol Risks. Your ETH is staked directly on isolated, Dedicated Validators, ensuring your staking lifecycle is structurally separate from shared or collective protocols. This native deployment architecture eliminates the third-party smart contract dependencies and shared counterparty risks often associated with pooled staking solutions.

1.5 No Financial Advice. The provision of the Services does not constitute investment, financial, tax, or legal advice. Staking involves high technical and economic risks. Participation is executed at your sole discretion and risk.

1.6 Technical Services. The User acknowledges and agrees that the Services are solely technical infrastructure services facilitating validator operations and do not constitute a collective investment scheme, capital markets product, securities offering, deposit-taking activity, payment service, financial advisory service or any licensed activity under applicable law.

2. REWARD MECHANICS

2.1 Asynchronous Reward Streams. The User acknowledges and agrees that staking rewards are dual-layered and asynchronous. CL Rewards are protocol-driven and distributed automatically by the network to User-controlled withdrawal addresses, while EL Rewards are event-driven, transaction-dependent, and irregular.

2.2 Yield Disclaimer. imToken may elect to utilize blockspace auction strategies to optimize EL Rewards, including the implementation of infrastructure tools such as MEV-Boost or secondary relay configurations. imToken does not guarantee any specific reward rate, block proposal frequency, or yield metric. Past performance of the Staking Infrastructure is not indicative of future results.

3. FEES, DEPOSIT, AND SETTLEMENT

3.1 Reward-Based Fee. In consideration for providing the Staking Infrastructure, imToken charges a single, streamlined Service Fee. This fee is calculated daily against the Total Rewards successfully generated by your Dedicated Validator(s) per the Fee Schedule outlined in Appendix A.

3.2 Service Deposit and Settlement. To ensure operational continuity, prevent network downtime penalties, and facilitate automated billing, the User must pre-funded a Service Deposit equivalent to 0.25% of the staked principal (i.e., 0.08 ETH per 32 ETH validator). This balance acts as a liquidity reserve to satisfy accrued Service Fees when generated EL Rewards are insufficient to cover the fee liability. For the avoidance of doubt, the Service Deposit does not constitute a deposit, stored value, investment product, trust account, safeguarded account or custodial asset, and remains beneficially owned by the User until applied toward any accrued Service Fees.

• Daily Accrual: Accrued Service Fees shall be calculated daily and tracked ledger-side against the User's Service Deposit balance.
• Settlement and Deduction: Formal invoicing and the physical deduction of accumulated Service Fees from the Service Deposit shall occur exclusively upon the earliest of:
  • Annually at the close of each calendar year;
  • When the User initiates an unstaking or voluntary exit process of all Dedicated Validator(s); or
  • Upon the termination of the Services.
• Priority of Payment: At the time of settlement, accrued Service Fees balances shall be satisfied first by utilizing 100% of the generated and captured EL Rewards assigned to that period, with any remaining unpaid fee balance deducted directly from the pre-funded Service Deposit. Any unused Service Deposit shall be returned to the User following final settlement.

4. INSUFFICIENT DEPOSIT AND TERMINATION

4.1 Deposit Shortfall Alerts. imToken will issue advance notifications via the interface when the calculated accrual indicates the Service Deposit is projected to reach zero prior to the settlement date, allowing the User time to manage the balance.

4.2 Obligation to Maintain Balance. It is the User's sole responsibility to top up the Service Deposit when notified. Failure to maintain a sufficient Service Deposit balance may result in an immediate suspension of infrastructure support or service termination.

4.3 Zero Balance Termination. If daily fee accruals exceed the value of the Service Deposit, imToken reserves the right to suspend or terminate infrastructure support for the User's Dedicated Validator(s). This termination threshold applies as soon as the calculated net balance is zero or negative.

4.4 Protocol Exit Latency. In the event of termination or a User-initiated exit, the Staking Infrastructure will broadcast a protocol-compliant voluntary exit message. The User explicitly acknowledges that the final withdrawal of funds is subject to network processing times, un-staking windows, and exit queues enforced entirely by the Ethereum consensus layer protocol, and imToken bears no liability for network-enforced processing delays.

5. AMENDMENTS AND MODIFICATIONS

5.1 Right to Amend. imToken reserves the right to amend, modify, or update this Agreement from time to time to reflect operational, legal, or regulatory changes. This includes, without limitation, modifying the Service Fee percentages and the mandatory Service Deposit requirements.

5.2 Notice Period and Acceptance. If an amendment materially changes your obligations, fee structures, or Service Deposit requirements, imToken will provide notice through the interface or via available communication channels at least fourteen (14) days before the changes take effect. Your continued use of the Staking Infrastructure following the expiration of this 14-day notice period constitutes your binding acceptance of the amended Terms. If you do not agree to the amendments, you must initiate a compliant protocol exit and terminate your use of the Services prior to the effective date of the changes.

6. WARRANTY DISCLAIMERS AND LIMITATION OF LIABILITY

6.1 "As-Is" Provision. The Staking Infrastructure and Services are provided on an "as-is" and "as-available" basis without warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.

6.2 Protocol and Third-Party Vendor Dependencies. Staking involves inherent blockchain network risks and external dependencies. imToken shall not be liable for any losses, damages, or operational failures arising from:

• Third-Party Suppliers: Outages, hardware defects, hosting infrastructure failures, or the insolvency/bankruptcy of third-party infrastructure vendors and cloud suppliers;
• Protocol Dynamics: Ethereum protocol-level upgrades, hard forks, software bugs in the underlying open-source code, network congestion, malicious slashing events caused by client bugs, or changes to consensus rules; or
• Force Majeure and Regulation: Acts of God, catastrophic events, or adverse shifts in the global legal or regulatory classification of cryptographic staking services.

For the avoidance of doubt, imToken may seek recovery from infrastructure providers where slashing results from provider negligence, however, imToken does not guarantee any recovery nor assumes any direct liability to the Users except where required by law.

6.3 Aggregate Liability Cap. To the maximum extent permitted by applicable law, imToken's total aggregate liability for any claims, damages, or causes of action arising out of or in connection with this Agreement—whether in contract, tort, or otherwise—shall be strictly limited to the total Service Fees actually paid by the User to imToken during the twelve (12) months immediately preceding the event giving rise to the claim.

7. DEFINITIONS

• "Consensus Layer (CL) Rewards" means the rewards generated via the Ethereum consensus mechanism.
• "Execution Layer (EL) Rewards" means the rewards generated via transaction execution, including but not limited to priority fees and Maximal Extractable Value (MEV).
• "Total Rewards" means the total sum of CL Rewards and EL Rewards.
• "Dedicated Validator" means an isolated Ethereum validator node running on cloud or bare-metal infrastructure utilizing 32 ETH provided exclusively by the User.
• "Service Deposit" or "Operational Continuity Reserve" means the pre-funded ETH balance required to be maintained by the User to cover accrued Service Fees.
• "Service Fees" means the fees owed to imToken as consideration for provisioning and maintaining the staking service.
• "Staking Infrastructure" means the software, node management systems and hardware infrastructure maintained by imToken or its third-party infrastructure vendors.

APPENDIX A: FEE SCHEDULE