A little clarification on China and India buying and selling lead:
The metals industries of both countries import lead battery scrap, battery plates, lead cable stripping, mixed hard and soft lead scrap, remelted lead, lead ballast, lead blocks, chemical concentrates containing lead, and lead ore. They also mine their own lead ore.
Then they export pure and alloyed lead sheet, rod, wire, anodes, powder, oxides, lead mono silicate, and other bulk forms.
Does China buy lead? Yes, but not purified or alloyed bulk lead we need for bullets. Instead, it buys ore and scrap and turns it into bulk lead and lead products. That constitutes both competition and resource for the lead bullet industry. It's hard to declare that China is good for the industry, or bad for the industry. It's both. Things are sometimes a little more complicated than we might hope.