Molefe also said the utility would seek 2 billion rand ($146 million) in compensation from global mining and trading firm Glencore Plc after business rescue administrators at its struggling local unit stopped coal supplies to Eskom's Hendrina power plant after a contractual dispute.
In the context of the input sentence, determine the relationship between 'Glencore' and 'mining'.
Options: legal form, stock exchange, original broadcaster, industry