In August 2019, the nuclear-grade sponge zirconium products produced by China Nuclear Jinghuan Zirconium Industry Co successfully passed the qualification appraisal review, proof that the nuclear-grade sponge zirconium products independently developed and produced by CNNC have reached an advanced level.In May 2020, CNNC China Nuclear Energy Industry Co signed a contract to export nuclear-grade sponge zirconium to the Chepetsky Mechanical Plant, which is operated by Russian fuel company TVEL. The agreement with an overseas company is confirmation that CNNC’s nuclear-grade zirconium sponge products have reached international standards.