The Johannesburg-based company reported EBITDA of US$724 million, $666 million higher compared with the prior-year period.
Sibanye said net debt was down 40%, year-on-year, at the end of March, while its net debt:adjusted EBITDA ratio was at 0.75-times as at quarter end, down from 1.25x at the end of December and below its 1x long-term target. The ratio was 2.5x at the end of the 2018 financial year.
The company said South Africa mines were ramping back up after last month's partial easing of COVID-19 restrictions.
In the US, the company's two-element (2E) PGM basket price was 57% higher year-on-year at $2,053/oz and in South Africa, further rand depreciation provided an additional first-quarter revenue boost with the average 94% higher year-on-year for the four-element PGM basket price of R33,192/oz.
Sibanye CEO Neale Froneman said US PGM operations saw an 8% year-on-year increase in mined 2E PGM output to 141,585oz, reflecting the return to planned production rates at the East Boulder and Stillwater mines, despite ongoing difficult ground conditions impacting the Blitz project. Total US first-quarter's AISC of $894/oz 2E was 7% higher year-on-year.
SA PGM operations saw 4E PGM output rising by 59% year-on-year to 418,072oz, albeit at higher AISC of $1,089/oz 4E, reflecting the change to toll processing at Rustenburg, higher royalties and the addition of production from the higher-cost Marikana operation.
Given the reduced net debt, available liquidity, including from subsidiary DRDGold, increased to $1.026 billion as at March 31, comprising $916 million cash on hand, $12 million in committed undrawn facilities, and $98 million of available uncommitted overnight facilities.
The company's New York-quoted equity (SBSW:Nasdaq) has come off its mid-February trebling and 12-month high of $13.27 to trade at $7.97, up 9% early Tuesday, giving it a market capitalisation of $8.7 billion. It touched a low of $3.16 a year ago.