负责露天矿山开采技术方案制定、执行，原土分类检测； 1. Responsible for the formulation and implementation of open-pit mining technology plans, classification and testing of raw soil;
协助矿山负责人进行安全管理。 2. Assist the person in charge of the mine to conduct safety management.
熟悉露天矿山开采相关规定、标准； 1. Familiar with relevant regulations and standards for open-pit mining;
、本科以上学历，采矿相关类专业; 2. Bachelor degree or above, major in mining related majors;
3. The working place is in Yangyuan, Hebei.
Established in 2000, Zhejiang Changan Renheng Technology Co., Ltd. is a national high-tech enterprise focusing on the research, development, production, sales and service of bentonite fine chemicals.
In 2015, with the approval of the China Securities Regulatory Authority, Changan Renheng was listed on the Growth Enterprise Market of the Hong Kong Stock Exchange.
Chang'an Renheng owns a wealth of high-quality bentonite mines, a professional technical research and development service team, and a scientific production management system. It is committed to becoming one of the most professional bentonite manufacturers at home and abroad.
The headquarters of Chang'an Renheng is located in the Economic Development Zone of Changxing County, Huzhou City, Zhejiang Province. The factory is located in Futujiang Township, Yangyuan County, Zhangjiakou, Hebei Province.