Utilize the input text as a context reference, choose the right relationship between ArcelorMittal 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.

The new CEO of ArcelorMittal, Simon Wandke, described his promotion as CEO of ArcelorMittal Mining as a great honour for him, and was looking forward to the challenge.

Answer: industry