We are happy to announce that the SPK reward campaign for Spark USDC On-chain Earn (the "Campaign") has been extended from 8:00 a.m. UTC, September 3, 2025 to 8:00 a.m. UTC, October 10, 2025.
There is no subscription limit, and users can earn up to 10% APR (including Spark USDC On-chain Earn base APR + 5.5% real-time SPK reward campaign APR) during the Campaign period (including the extension period).
Checklist
- The Campaign is only open to users who've completed identity verification.
- How to subscribe
- On OKX app: Visit Explore and select On-chain Earn. Select USDC and choose Spark as your source of earnings. Enter your subscription amount and subscribe.
Notes
Campaign rules
Users who subscribe to Spark USDC On-chain Earn will receive additional SPK rewards.
Users already participating in the current campaign will continue to enjoy rewards without needing to redeem and resubscribe their funds.
Participation rules
Details follow the official OKX help article; this page is a learning checklist, not an official mirror.











