Utilize the input text as a context reference, choose the right relationship between Glencore and Marc Rich 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.

When in 1993, the founder of Glencore and U.S. fugitive Marc Rich tried to corner the zinc market, the attempt went wrong, costing the company $170 million.

Answer: founded_by