If you're selling surplus steel at a discount because it would cost more to not make it, that is not dumping. It's maximizing profits.

I'm aware that many countries have anti-dumping laws and protective tariffs. I suspect the "dumping" charge is just an excuse to insulate oneself from competition. The cost of protecting an industry in this way is higher prices for everyone else in the country.

Economic prosperity comes from exploiting comparative advantage, not blunting it.