1. Male and female, 25-35 years old, bachelor's degree or above, sincere, trustworthy, good professional ethics, strong sense of team.

2. They are required to be hard-working, strong in learning and communication, and proactive.

3. Good conduct, no bad habits, willing to keep the company's business secrets, and loyal to the company.

4. Good language communication skills, understanding of mining, oil field and water treatment is preferred.

5. Able to travel (nationwide), strong pressure resistance, understand business etiquette, and obey the company's arrangement.

6. Responsible for product sales according to the company's sales strategy and plan, with strong business development and maintenance ability.

7. Passionate and positive in work, strong teamwork and pressure resistance, and market analysis ability.

1. Male or female, under the age of 40, bachelor degree or above, major in international trade/foreign trade English is preferred, CET-4 or above (fluent oral English).

2. He is honest, has a strong sense of responsibility, is good at learning, and has the ability of teamwork and management.

3. Good conduct, no bad habits, willing to keep the company's business secrets, and loyal to the company.

4. Good language communication skills, understanding of mining, oil field and water treatment is preferred.

5. More than 2 years of international trade experience.

6. Proficient in international trade business operation knowledge, have the ability to independently develop overseas markets and good marketing skills.

1. Male or female, with master's degree, overseas study background, 985 or 211 universities preferred, and more than 2 years of relevant professional work experience.

2. Major in chemical engineering, chemistry, environment, polymer, chemical analysis and inspection, etc.

3. Good conduct, keep the company's business secrets, be loyal to the company, have a strong sense of responsibility and dedication, and can work hard.

4. Have good work psychological quality and teamwork spirit, have certain communication planning and implementation ability, and strong data retrieval, analysis and sorting ability.

5. Familiar with the operation of laboratory equipment, with solid theoretical basis and practical experience.

6. Be responsible for product research and development, improvement of original products, introduction and tracking of new products and new processes.

7. Be responsible for the control of product production process, analyze and solve abnormal technical problems.

8. Be responsible for the improvement of existing R&D equipment and the introduction of new technologies.

9. It has certain foresight and predictability, and can put forward plans for potential risks in advance.