Porter Holding International, Inc. focuses on developing and operating online to offline business platforms. It is developing PT37.com, 17yugo.com, Port City, and payment platforms. The company also provides Internet payment, mobile payment, POS machine receipt, electronic technology development, and Internet marketing services. In addition, it offers investment and corporate management consulting, and training services to its clients. The company was founded in 1994 and is based in Shenzhen, China.