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    • Shandong
      Shandong

      Shandong Plasticizer Production Base

    • Hubei
      Hubei

      Hubei Stabilizer & Foaming Agent Production Base

    • Hangzhou
      Hangzhou

      Tsingyan Hangzhou Center and R&D Center

    • Ningbo
      Ningbo

      Tsingyan Headquarter & Warehouse Center