RIO DE JANEIRO/SYDNEY, Aug 26 (Reuters) - Brazilian mining giant Vale has continued its disposal of non-core holdings, agreeing to sell a mothballed coal mine in Australia jointly to Glencore Plc and Bloomfield Group for an undisclosed sum.
In the context of the input sentence, determine the relationship between 'Glencore' and 'mining'.
Options: industry, currency, director/manager, founded by