Utilize the input text as a context reference, choose the right relationship between BG Group and natural gas 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.

CAIRO, July 26 (Reuters) - BG Egypt, a subsidiary of BG Group and one of Egypt's largest natural gas producers, has appointed Khaled Kacem as its president, the company said in a statement on Sunday.

Answer: product_or_material_produced