India, Sept. 28 -- The state-run iron ore producer has long sought to optimize returns by increasing its domestic processing and value-addition capabilities. This weekend, a new chain of facilities in Chhattisgarh started doing that, linking its Bailadila mines to a steelmaking site, with management watching the first output live from Hyderabad. The change could reshape how leftover material is used and how it moves. Here is what it may mean for the company, its investors and the risks that sit ahead of it.

Shares of NMDC Ltd are trading at Rs. 78.20, down 2.13 percent on Monday. The stock touched the intraday high of Rs. 80.90 after opening at Rs. 80.70 before slipping to a low of Rs. 78.15. The company commands a market capitalization...