OKEx Chain (OEC)

OKExChain aims to bring a new level of freedom for traders and users that are looking to create their own decentralized exchange. Developed with internal and external OKExChain-led ecosystem partners, OKExChain supports multi-chain parallel development that can significantly speed up the development process and support the launch of large-scale applications. While a single application can be developed by multiple parties at the same time, it can foster a benign internal competition for products to implement regular updates, hence improving the user experience as a result.
You can have more information about Okex Chain in their documentation.