JSE- and NYSE-listed Sibanye-Stillwater’s platinum-group metals (PGMs) mineral resources have increased by 90% to 389-million ounces, while its PGMs mineral reserves have increased by about 20% to 55.10-million ounces. The precious metals miner on Tuesday attributed the increase in its PGMs mineral resources and reserves primarily to the inclusion of the Marikana assets, which it acquired in June 2019, as well as ongoing successful definition drilling at the Blitz project, in the US.