> For the complete documentation index, see [llms.txt](https://docs.chainbitx.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chainbitx.com/help-center/eng/readme/announcement-center/announcement/listing-announcement-b-ub-opg.md).

# Listing Announcement (B, UB, OPG)

New Perpetual Contracts Launch Notice

Dear Users,

To further expand our perpetual contract offerings and enhance your trading experience, ChainBitX will officially launch the following USDT perpetual contracts on May 20, 2026, at 12:00 (UTC+8):

#### B (B USDT Perpetual Contract)

B (BUILDon) is a community-driven token on BNB Chain focused on Meme culture, DeFi, and Web3 ecosystem development.

#### UB (UB USDT Perpetual Contract)

UB (Unibase) is a decentralized AI Memory Layer project that provides long-term memory and collaboration capabilities for AI Agents in Web3.

#### OPG (OPG USDT Perpetual Contract)

OPG (OpenGradient) is a decentralized AI infrastructure network focused on transparent and verifiable on-chain AI computation.

USDT perpetual contracts allow traders to participate in the price movements of B, UB, and OPG with leverage, without holding the underlying assets.

***

### New Contract Details

| Contract Name               | Underlying Asset | Settlement Asset | Tick Size | Max Leverage | Funding Fee Frequency | Trading Hours |
| --------------------------- | ---------------- | ---------------- | --------- | ------------ | --------------------- | ------------- |
| B USDT Perpetual Contract   | B                | USDT             | 0.0000001 | 25X          | Every 8 Hours         | 24/7          |
| UB USDT Perpetual Contract  | UB               | USDT             | 0.0000001 | 50X          | Every 8 Hours         | 24/7          |
| OPG USDT Perpetual Contract | OPG              | USDT             | 0.0001    | 20X          | Every 8 Hours         | 24/7          |

***

### Important Notes

* The funding fee rate cap and floor for these contracts are set at +2.00% / -2.00%, with settlement every 8 hours.
* ChainBitX may dynamically adjust contract parameters based on market conditions, including:
* Funding fee rates
* Leverage limits
* Margin requirements

Thank you for your continued support and trust!

ChainBitX Team\
May 20, 2026

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