Utilize the input text as a context reference, choose the right relationship between Paladin Energy and uranium 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.

Paladin Energy chief John Borshoff withstood two decades of volatility in the uranium sector but in August Paladin said Mr Borshoff and the board had agreed he would step down .

Answer: product_or_material_produced