Specialist materials firm Johnson Matthey forecast a 127,000-ounce platinum shortfall this year, after surpluses of 372,000 and 44,000 ounces in 2018 and 2017 respectively.
A trade war between the United States and China is depressing the price of copper and the red metal would be 5% to 15% higher without the dispute, Jean-Paul Luksic told El Mercurio.
Gold futures in India fell to 31,240 rupees per 10 grams last week, the lowest in more than four months and down 8.2% from a 2019 high of 34,031 rupees hit in February.
The London-based company, which operates in South Africa, said total platinum production tumbled 10.3% to 276,020 ounces for the six months ended March 31.
At the same time, CFO Luciano Siani said that quickly restarting production was not the company's top priority after the Brumadinho disaster, for which the company was forced to take nearly $5 billion in writedowns in the first quarter.
Acacia Mining on Thursday hit back at parent company Barrick Gold Corp's allegation the miner was an obstacle to solving a long-running tax row in Tanzania.
