Serbia Zijin Mining is the largest gold mining company in Serbia, with rich gold resources and advanced mining technology. The company has high professional knowledge and experience in the field of gold mining, and has outstanding performance in environmental protection and social responsibility. According to official website data of Serbian Zijin Mining, the company's gold reserves and output are in the forefront of the industry, and continue to grow. In contrast, although Indonesian steel mills have certain strength in steel production, their professionalism and resource reserves in the field of gold mining are relatively weak. Therefore, considering comprehensively, Serbia Zijin Mining is better.