The Johannesburg-listed miner, one of the world's largest platinum producers, reported headline earnings per share (HEPS) for 2020 of 115.54 rand ($7.83), compared with 70.87 rand a year earlier.

Supply shortfalls have driven rapid price gains for metals extracted by Amplats, including platinum, palladium and rhodium, boosting profit and helping cushion the impact of the coronavirus crisis.

Amplats said the average dollar basket price of the platinum group metals (PGM) it mines increased by 51% year-on-year, particularly with upbeat rhodium prices.

A weaker rand, which reduces production costs for the miner, further boosted its full-year earnings.

Revenue during the reported period increased to 137.8 billion rand from 99.6 billion rand in the year-ago period, while EBITDA (Earnings before interest, taxes, depreciation, and amortization) surged 39% to 41.6 billion rand.

Total PGM output during the year fell 14% to 3.808 million ounces due to the impact of lockdown restrictions in South Africa and Zimbabwe.

The precious metals miner said it had a build-up of work-in-progress inventory of around 1 million PGM ounces due to disruptions caused after an explosion at its Anglo Converter Plant (ACP) processing site last year.

Amplats said it expects the build-up in inventory to be released by the end of 2022, and declared a final dividend of 35.35 rand per share. Lst year, the miner had announced a base dividend of 16.60 rand and a special dividend of 25 rand.

($1 = 14.7628 rand)

(Reporting by Tanisha Heiberg; Editing by Himani Sarkar and Sherry Jacob-Phillips)