Siren Gold (ASX:SNG) has become the latest explorer to dip its toe into the antimony thematic with that company boosting its Auld Creek prospect mineral resource for the critical mineral to 14,500 tonnes (14.5Kt). Worth noting – New Zealand, home to Auld Creek, has just drafted a new critical minerals list. Included is antimony, following a recent Chinese decision to curb exports of that metal. China is no longer the world’s largest producer, per the USGS. The overall global MRE for gold equivalent (AuEq) in Siren’s portfolio – that’s Auld Creek and all of its other assets – now sits at over 1…