This week major miners BHP GroupBHP.AX and Vale SAVALE3.SA reported higher quarterly iron ore production, while Rio TintoRIO.AX, RIO.L posted a 4% quarter-on-quarter rise in shipments. By Enrico Dela Cruz Oct 20 (Reuters) - Iron ore's losses deepened on Thursday, with the benchmark price of the steelmaking ingredient in Singapore hitting a fresh 2022 low, hammered by a gloomy outlook for global steel demand and supply-side pressures. The Brussels-based group said the global economic environment has deteriorated significantly, citing high inflation and interest rate hikes, and China's slowdown due to its zero-COVID policy and property sector downturn.