2015. “MATTERS OF MUTUAL INTEREST” FOR PURPOSES OF A STRIKE Vanachem Vanadium Products (Pty) Ltd v National Union of Metalworkers of South Africa [2014] 9 BLLR 923 (LC) . Obiter. 36, 3 (Dec. 2015). DOI:https://doi.org/10.17159/obiter.v36i3.11610.