To meet the diverse trading needs of global users, Criptlán Exchange has established an independent system for offline purchasing of digital currencies, separate from the exchange. Each person can post buy/sell advertisements in the OTC trading advertisement area on Criptlán Exchange. Users can buy/sell through offline methods, and after the transfer is completed, they can confirm whether the transaction is completed on the platform. Once confirmed, the platform will transfer the seller's digital currency to the buyer. The OTC trading advertisement area on Criptlán Exchange can help establish a credit system for each user.