The BHP Group Ltd (ASX: BHP) share price is down more than 1% on news of a reported Chinese ban on BHP’s iron ore.BHP is one of the world’s largest miners in the world. It’s a major iron ore producer and also mines copper and coal. The miner is also working on a potash (fertiliser) project.Iron ore ban?According to reporting by various media, including the ABC, the main Chinese buyer of BHP iron ore has temporarily paused purchases as contract negotiations faltered. This was originally reported by Bloomberg ...