Shaanxi Etrol Technologies Co., Ltd. (hereinafter referred to as "Shaanxi Etrol") was established in 2014 in Xi'an City, Shaanxi Province. It is a wholly-owned subsidiary of Beijing Etrol Technologies Co., Ltd.. Shaanxi Etrol has complete software and hardware R&D capabilities and system integration capabilities. It is a high-tech enterprise of automation with a full business chain including products R&D, manufacturing, sales, and system integration. In 2018, Shaanxi Etrol set up the International Department, and established Dubai branch for expanding the oil & gas automation business in the Middle East, Central Asia and Africa. Shaanxi Etrol is committed to promoting the construction of domestic digital oilfields and intelligent oilfields. Orientated by the market, driven by customer demands for innovation, keeping up with technological trends, and relying on industrial-grade controller core modules with independent intellectual property rights, Shaanxi Etrol successfully developed various intelligent RTU controllers and instruments which are widely used in the mining, processing, pipeline transportation, storage and distribution of oil, natural gas, coal-bed methane etc.. Its business scope is of automation for oil & gas industry such as sales of oil & gas automation products, oil & gas field system integration, construction and operation and maintenance of oil & gas field Internet of Things (digital, intelligent), oil & gas long-distance pipeline network, city gas, and oil & gas storage automation construction. The main products of Shaanxi Etrol include Oil and Gas Special Products, Oil & Gas Field Special Controllers, Wireless Instruments, Wireless Gateways, and Software Products. Etrol products have covered more than 50% of the automation market in oil & gas industry in China. Specifically, RTU, DCS, and control cabinet of digital pumping unit take up to 85% of Changqing Oilfield in Shaanxi province, P. R. China.