Administrative Management Department - Legal Affairs Supervisor: 2 persons, bachelor degree or above, with legal professional qualification certificate, priority will be given to those with lawyer qualification, more than 3 years of experience in industrial/manufacturing enterprise legal affairs or law firm, priority will be given to those with legal work experience in cross-border investment and financing, international engineering, and smelting-related industries, able to use English as a working language, and priority will be given to those with work experience in Indonesia or other overseas industries.

Electrical maintenance workshop - specialists: 2 persons, college degree or above, more than 6 years of relevant work experience, familiar with electrical maintenance processes, maintenance procedures and safety regulations, familiar with the basic principles of secondary equipment, and proficient in any one of the electrical professional specialties.

Production Department - Dispatcher: 1 person, college degree or above, more than 5 years of experience in alumina production dispatching management, proficient in plant-wide material balance adjustment and material accounting, proficient in office software and DCS operations.

Steam Turbine Workshop - Team Leader: 2 persons, college degree or above, more than 6 years of experience in steam turbine workshop operation, familiar with the equipment structure and working principle of this major, and understand the relevant knowledge of technical management of the electric power industry.

Production Department - Production Dispatcher: 1 person, college degree or above, more than 8 years of relevant work experience, familiar with the production operation process of the port industry, able to reasonably organize and arrange production work, proficient in business knowledge, reasonably control the balance of ships entering and leaving the port, and have good organizational management, communication, coordination and execution capabilities.

Electrical Maintenance Workshop - Maintenance Team Leader: 2 persons, college degree or above, more than 2 years of working experience in the same position, familiar with electrical maintenance processes, maintenance procedures and safety regulations.