Figures computed from official regulatory filings — .
Ownershipinsiders 0% · institutions 0%
In USD · as of Oct 5, 2026
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LianDi Clean Technology, Inc., through its subsidiaries, distributes petroleum and petrochemical valves, equipment, and related services in the People's Republic of China. The company distributes unheading units for the delayed coking process; and offers systems integration, and related technical and engineering services to petroleum and petrochemical companies and other energy companies. It also develops and markets optimization software for data collection, performance analysis, and process optimization in the polymerization reaction of ethylene production. In addition, the company is involved in development, manufacture, and sale of organic and inorganic chemical products, and high polymer fine chemical products; provision of chemical professional services and oil tank sludge cleaning services; and recycle and sale of discarded or used packing products. LianDi Clean Technology, Inc. was founded in 2004 and is based in Beijing, the People's Republic of China. As of June 29, 2015, LianDi Clean Technology, Inc. operates as a subsidiary of Smart Specialists Limited.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
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| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| SJ Asia Pacific Ltd. | Other | $6.8M | SEC | ||
| Sell |
| $25.9M |
| SEC |
| SJ Asia Pacific Ltd. | Buy | $25.9M | conv 68First in 12mo | SEC |
| Zuo Jianzhong | Sell | $25.9M | SEC |
| Chen Hongjie | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Paritz Joel | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Li Xiaojun | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |