Utilize the input text as a context reference, choose the right relationship between Glencore and mining from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Stocks in mining and trading company Glencore fell almost 30 percent and closed at a record low on Monday over concerns it is not doing enough to cut its debt to withstand a prolonged fall in commodity markets.

Answer: industry