Xi'an Strontium Industry & Trade Co., Ltd. is based in China and lists strontium metal and strontium carbonate on Global Trade Plaza. The strontium metal is offered as 2.5 kg pieces originating from Shanxi, packed in aluminum cans that are placed in steel drums and palletized for shipment. It is described for use in strontium-aluminum master alloys that modify aluminum-silicon casting alloys. The strontium carbonate is supplied as a colorless crystal or white fine powder with a molecular formula of SrCO3 and a molecular weight of 147.63. The material has a relative density of 3.70 and a melting point of 1497 °C. Stated applications include the production of other strontium salts, magnetic materials, electronic ceramics, fluorescent and luminescent materials, fluorescent glass, and PTC thermistor elements. Packaging is offered in 25 kg units with an inner plastic bag and outer woven bag, and special specifications or packaging can be agreed upon with the buyer.