Asia Broadband (OTCPK:AABB) said Thursday that it will introduce its proprietary cryptocurrency payment processing solution PayAABB on September 7.The integration and testing of PayAABB's network components, in collaboration with the company's digital asset developer, are in the final stages of completion, it said.PayAABB will offer online businesses payment acceptance diversity. The move comes as Asia Broadband (OTCPK:AABB), which is in the business of producing, supplying and selling precious and base metals mostly in Asian markets, seeks to expand its digital asset division.In March, Asia Broadband launched mobile app versions of proprietary crypto exchange.