When Jonathan Reynolds announced sweeping tariffs this summer to shield Britain’s steelmakers from a flood of cheap imports, the reaction seemed almost universally positive. “This government is unapologetic in our support for the UK steel sector,” declared Reynolds, then business secretary, promising to defend a “vital industry that underpins Britain’s industrial strength and national security.” Gareth Stace, director-general of the industry body UK Steel, hailed it as “a tremendous outcome” that would stop foreign producers...





