China Securities Network News (reporter Luo Min) Donggang shares 12 evening announcement, the company and well Tong Network Technology Co., Ltd. signed the "strategic cooperation agreement", the two sides on electronic invoices, electronic bills and block chain technology combined application reached a strategic cooperation intention. The two sides decided to jointly establish the Research Laboratory of block chain, and jointly promote the block chain technology in including but not limited to the electronic invoice, electronic bill landing and application. The two sides in the period of the agreement, electronic invoices, electronic bill, archives management service, RFID, data applications based on the combination of block chain technology, jointly build electronic invoices ecosystem block chain technology based on electronic bill, archives management service, RFID, data application ecosystem. Well Tong's underlying technology originated in the Silicon Valley. In 2014, it launched the underlying technology platform that supports commercial applications, and it is a company that is engaged in R & D of block chain underlying technology in China.