龙尚科技（上海）有限公司        https://www.longsung.com/

      The world's leading Internet of Things module and solution provider. Longshang Technology (Shanghai) Co., Ltd., as a holding subsidiary of Rihai Intelligent (Shenzhen Stock 002313), is a world leading Internet of Things module and solution provider. Since its establishment in 2005, it has always focused on customer needs and continued innovation; Open cooperation with partners to establish a good Internet of Things ecosystem. We are committed to providing GSM/GPRS/EDGE, WCDMA, CDMA1X/EVDO, TD-SCDMA, LTE, NB IoT, eMTC and 5G wireless communication modules as well as Internet of Things application solutions based on wireless communication modules. Our products are used in vehicle transport, energy meter, industrial gateway, public intercom, secure payment, consumer electronics, smart city and other industries.