Oxides, Hydroxides, and Peroxides of Strontium or Barium

Barium and strontium compounds in this heading serve distinct industrial niches: barium oxide and hydroxide are used in glass manufacturing, lubricant additives, and sugar refining, while strontium compounds find application in pyrotechnics and specialty ceramics. The US tariff schedule separates strontium compounds (2816401000) from barium compounds (2816402000), and China is the dominant import source across both lines. Importers of Chinese-origin goods should evaluate Section 301 tariff exposure, which applies broadly to inorganic chemicals from China.