Is TT&C Sichuan Instrument TT&C?

No, quadruple TT&C refers to Chongqing Silian TT&C Technology Co., Ltd. and Chuanyi TT&C refers to Chongqing Chuanyi Automation Co., Ltd., which is a wholly-owned subsidiary of Chongqing Chuanyi Automation Co., Ltd., so quadruple TT&C does not refer to Chuanyi TT&C. ..