Hindustan Copper Limited (HCL), a Government of India Enterprise, has invited applications for three part-time Subject Expert posts in the fields of Mining and Environment. These positions are offered on a retainership basis, making them ideal for experienced professionals seeking flexible engagement with a reputed public sector company. Selected experts will support HCL in their domain-specific functions by providing insights and advisory services. Applications must be submitted online via Google Form and email by 13th January 2026.