Constitutionality of sector-wide collective bargaining argued in high court February 23, 2016 University of Pretoria staff fear for their safety General NUM signs wage deal with LafargeHolcim for 8% increasePosted by admin Reuters reports that the National Union of Mineworkers (NUM) has signed a one-year wage agreement with the local unit of cement maker LafargeHolcim, ending a strike that had just entered its second week. Source: Latest News