More companies are pledging to achieve net-zero carbon emissions as they work to convince investors and consumers they can reduce their environmental footprint. High-emitting industrial companies face an especially tough challenge to get there.

Rio Tinto PLC named Ben Wyatt, Western Australia state’s former aboriginal affairs minister, as a nonexecutive director, as the miner continues to rebuild relations with indigenous landowners following the destruction of two ancient rock shelters in Australia last year.

Jetti Resources, an obscure mining business part-owned by members of the Pritzker and Walton families, is getting some new heavyweight investors: BHP and Freeport-McMoRan, two of the world’s biggest miners.

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