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Petrochemical Engineering Service

Through LianDi Clean Technology Inc.（LNDT）, the SJ Group designs facilities associated with petrochemical businesses, sells various equipments and facilities, provides control software, provides oil tank cleaning services, and manufactures and sells petrochemical products for the Chinese market.

Main affiliated companies

LianDi Clean Technology Inc.

LianDi Clean Technology Inc. ("LNDT") engages in the sale of various equipment and facilities, the provision of control software and oil tank cleaning services, the manufacture and sale of petrochemical products and more for the oil industry, primarily serving the largest energy groups in China.