Utilize the input text as a context reference, choose the right relationship between Cemex and cement 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.

PARIS, Sept 21 (Reuters) - French waste and water group Suez has opened a waste facility in Rugby, Britain that will provide energy for a Cemex cement plant, Suez said in a statement on Monday.

Answer: product_or_material_produced