Open Exchange (OPNX), previously known as Coinflex, has announced its closure this February. Once a hub for crypto derivatives and claims trading, the platform is winding down its operations. In a recent communication, the OPNX team expressed gratitude to its community and outlined key dates for its user base. According to the email, users must The post OPNX Announces Closure: Users Given Until Feb. 14 for Withdrawals appeared first on CoinGape .