Goldman forecast the platinum price will stand at $1,175 a troy ounce at the end of 2015 , 6% down from its previous forecast of $1,250 an ounce. For the end of next year, it sees a slight recovery to $1,225 – but still 9% lower than its previous forecast.

The bank sees palladium prices at $822 an ounce at the end of this year, versus $863 previously, and $900 an ounce next year, down from $988.