Tertiary Minerals is trading 6.96% down at £0.05, with materials and industrial metals weakness providing sector context, not a confirmed company-specific cause. - No company-specific announcement dated November 4 was identified; the latest listed RNS is a November 2 major-holdings notification. - Overnight, tin fell as much as 4.54%, copper 2.16% and zinc 2.76%, amid broader concerns about demand for materials used in data centers and electronics.