The UK government is seeking around £90 million in unpaid taxes following the rescue of a temporary staffing company through an £18 million deal that fully compensated its private lenders. Challenge Recruitment Group, a staffing supplier to major clients such as Tesco, Sainsbury’s, and Co-op, saw its primary assets purchased by US-based swipejobs in July. This marks the second instance the staffing company has emerged from insolvency still owing large sums to HM Revenue and Customs (HMRC).