SIMCom Wireless Solutions Co.,Ltd, Holding subsidiary of SUNSEA AIOT (002313.SZ), It is global leading Machine-to-Machine (M2M) wireless modules and solutions supplier, Since established in 2002, SIMCom has been fully committed to provide a variety of wireless technology platform modules and terminal level solutions around the world, such as GSM/GPRS/EDGE, WCDMA/HSPA/HSPA+, CDMA 1xRTT/EV-DO, FDD/TDD-LTE, LTE-M(CAT-M1), NB-IoTcellular communication and GPS/GLONASS/BEIDOU satellite positioning technology.