# Tuoxi Technology
Tuoxi Technology (拓烯科技; legal English name TopOlefin Technology (Quzhou) Co., Ltd.) is a Chinese specialty-polymer startup founded in 2020 and headquartered in Quzhou, Zhejiang, that produces high-end optical resins, most notably [cyclic olefin copolymer](https://www.edgepedia.org/cyclic-olefin-copolymer) (COC), for import substitution in optics, medical packaging, and related markets.[1](https://linkedin.com/company/topolefin-technology) • [2](https://www.jixin.tech/hangye/1798.html) The company raised a Series B of nearly RMB 1 billion in July 2023, began commercial shipments of China's first domestically produced specialty COC in late 2023, and, according to its own posts, remained operating into 2026.[2](https://www.jixin.tech/hangye/1798.html) • [3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) • [1](https://linkedin.com/company/topolefin-technology)
| Fact | Detail |
|---|---|
| Founded | 2020 (self-reported), Quzhou, Zhejiang, China[1](https://linkedin.com/company/topolefin-technology) |
| Sector | High-performance polymer materials; high-value optical and medical resins and engineering plastics[4](https://pro.huxiu.com/focus/96063.html) |
| Largest round | Series B of nearly RMB 1 billion, July 2023, led by Xicheng Jinrui (熙诚金睿) with Leishi Investment co-leading[2](https://www.jixin.tech/hangye/1798.html) |
| Total raised | Roughly RMB 1.1 billion across four disclosed rounds; the company itself reports USD 153,238,157 (unverified)[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) • [1](https://linkedin.com/company/topolefin-technology) |
| Capacity | Phase-one 3,000 t/yr COC line in production; planned three-phase total of 61,000 t/yr worth about RMB 5 billion per year[2](https://www.jixin.tech/hangye/1798.html) |
| Customers | Sunny Optical, Yutong Optical, Kebait; strategic partnerships with Hikvision and Dahua[2](https://www.jixin.tech/hangye/1798.html) |
| Status | Operating as of 2026 per the company's own announcements[1](https://linkedin.com/company/topolefin-technology) |
## History and founding
The company completed an angel round in 2020 from Oufang Angel (藕舫天使) and other investors. Between late 2021 and early 2022 it raised a Series A of several hundred million RMB from a mix of strategic and financial investors including China Electronics Hikvision (中电海康), Kebait (科百特), Liberte (利柏特), Honghui Fund (弘晖基金), and [Boyuan Capital](https://www.edgepedia.org/boyuan-capital) (博远资本).[2](https://www.jixin.tech/hangye/1798.html)
Its founding team members come from leading global chemical companies and include R&D and production executives from [Fortune 500](https://www.edgepedia.org/fortune-500) firms, led by a National Outstanding Young Scientist (国家杰青) laureate and a provincial overseas talent-recruitment expert, with a core technical team holding PhDs from MIT, Zhejiang University, and the Tokyo Institute of Technology.[2](https://www.jixin.tech/hangye/1798.html) The named co-founder and chief technology officer is Guo Song (郭松).[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) No source names the other founders or gives a registry incorporation date; the 2020 founding year comes from the company's own page.[1](https://linkedin.com/company/topolefin-technology)
## Products and technology
Tuoxi focuses on the R&D, production, and manufacturing of high-performance polymer materials, targeting high-value optical and medical resins and engineering plastics.[4](https://pro.huxiu.com/focus/96063.html) It describes a four-line product matrix:[2](https://www.jixin.tech/hangye/1798.html)
- **SOOC**: cyclic olefin copolymer (COC), its first commercialized product
- **TOPC**: optical-grade carbonate copolymer
- **TOPM**: optical-grade acrylate copolymer
- **HPMP**: methylpentene polymer
SOOC is an addition-polymerized copolymer of light olefins and specialty cyclic olefins with low density, high strength, dimensional stability, high refractive index, UV-to-visible transparency, moisture-barrier properties, heat and chemical resistance, and low extractables. End uses include optical lenses, optical data storage, gratings and sensors, plus medical packaging such as prefillable syringes and vaccine vials.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) Target markets overall are precision optics, smart terminals, life sciences, new energy, packaging, and automotive.[2](https://www.jixin.tech/hangye/1798.html)
Naming differs between sources: independent trade press brands the COC line SOOC (拓美特 SOOC®), while the company's own page lists its COC series as TAMT and describes TOPM as PMMA rather than an acrylate copolymer.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) • [1](https://linkedin.com/company/topolefin-technology)
## Funding, round by round
| Round | Date | Amount | Investors |
|---|---|---|---|
| Angel | 2020 | undisclosed | Oufang Angel and others[2](https://www.jixin.tech/hangye/1798.html) |
| Series A | late 2021 to early 2022 | several hundred million RMB | China Electronics Hikvision, Kebait, Liberte, Honghui Fund, Boyuan Capital[2](https://www.jixin.tech/hangye/1798.html) |
| Series B | July 2023 | nearly RMB 1 billion | Xicheng Jinrui (lead), Leishi Investment (co-lead), Shangrong Capital, Lanjun Venture Capital, Huayan Capital, Fangguang Capital, Zhonglan Venture Capital (under China National Control Group), Quzhou Financial Holdings; Liberte added on; Duowei Capital sole financial advisor[2](https://www.jixin.tech/hangye/1798.html) • [4](https://pro.huxiu.com/focus/96063.html) |
| Strategic | 30 November 2023 | over RMB 100 million | Tongge Venture Capital (lead), Chenling Capital, Houxue Capital; Leishi Investment added on[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) |
B-round proceeds were earmarked mainly for phase-two production line construction.[2](https://www.jixin.tech/hangye/1798.html) The strategic round was for phase-two construction and working capital.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) The company's own page reports total funding of USD 153,238,157, including a Series B of USD 139.1 million dated 2023-07-21 and a USD 14.1 million venture round dated 2023-11-30; this is self-reported and unverified, though broadly consistent with the disclosed RMB amounts.[1](https://linkedin.com/company/topolefin-technology)
## Business and traction
As of July 2023 the phase-one 3,000-tonne-per-year SOOC specialty COC line was built and in production. The planned three-phase program totals 61,000 t/yr with an expected output value of about RMB 5 billion per year.[2](https://www.jixin.tech/hangye/1798.html) By November 2023 the phase-one plant had achieved on-schedule mass production and shipped its first sales to core downstream customers, with phase-two construction scheduled to begin at the end of that month.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0)
The company reports deep cooperation with optical-component makers Sunny Optical (舜宇光学), Yutong Optical (宇瞳光学), and Kebait, and strategic partnerships with end customers [Hikvision](https://www.edgepedia.org/hikvision) and Dahua.[2](https://www.jixin.tech/hangye/1798.html) Co-founder and CTO Guo Song said the first domestic specialty COC shipments broke a foreign technology monopoly of roughly 50 years and achieved import substitution of high-end optical resins; this is the company's own characterization.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) The market context supports the substitution thesis: China accounts for over 70% of global mid- and downstream demand for high-end optical resins such as optical lenses, yet such materials were previously 100% imported from Japanese firms.[2](https://www.jixin.tech/hangye/1798.html)
## The Chinese high-end polyolefin race
Tuoxi sits in the COC and optical-resin niche, which is adjacent to but distinct from the photovoltaic-grade polyolefin elastomer (POE) market where China's larger import-substitution plays are happening. Before 2024, global POE capacity was held by Dow, ExxonMobil, LG Chem, and [Mitsui Chemicals](https://www.edgepedia.org/mitsui-chemicals), and China imported over a million tonnes of POE a year while producing none domestically.[5](https://faxiangongchang.com/en/reports/china-chemical-materials-2026)
The scale of the POE rivals dwarfs Tuoxi's disclosed capacity. In December 2023, Hainan Beoyi Technology's 30,000 t/yr specialty polyolefin project started up successfully, commissioning China's first domestic POE industrial production equipment.[6](https://www.51dmapa.com/beoyi-chinas-first-polyolefin-elastomer-poe-industrial-equipment-is-put-into-production/) In late June 2024, [Wanhua Chemical](https://www.edgepedia.org/wanhua-chemical)'s first 200,000 t/yr POE unit in Yantai completed its full-process trial run and produced qualified product, China's first large-scale independently developed POE plant.[5](https://faxiangongchang.com/en/reports/china-chemical-materials-2026) [Satellite Chemical](https://www.edgepedia.org/satellite-chemical) committed RMB 25.7 billion at [Lianyungang](https://www.edgepedia.org/lianyungang) for three 200,000 t/yr POE units plus alpha-olefin self-supply, the most ambitious integrated POE capacity commitment in China.[5](https://faxiangongchang.com/en/reports/china-chemical-materials-2026) No source directly compares Tuoxi with these POE producers, and none links Tuoxi to photovoltaic-film POE, where 2022 Chinese POE particle consumption exceeded 250,000 tonnes.[6](https://www.51dmapa.com/beoyi-chinas-first-polyolefin-elastomer-poe-industrial-equipment-is-put-into-production/)
## Recent developments
Two milestones followed the July 2023 Series B: the November 2023 strategic round and first commercial shipments of SOOC, with phase-two construction beginning at the end of November 2023.[3](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0) After that, independent press coverage stops. The record for 2024 through 2026 rests on the company's own posts: on 2026-02-26 it announced that its TAMT optical-grade COC series completed EU REACH registration, and on 2026-04-03 that it received [IATF 16949](https://www.edgepedia.org/iatf-16949) automotive quality-management certification. Both announcements indicate continued operation into 2026 but are unverified.[1](https://linkedin.com/company/topolefin-technology)
## References
1. [TopOlefin Technology company page (LinkedIn, company self-reported)](https://linkedin.com/company/topolefin-technology)
2. [聚焦高性能聚合物材料，拓烯科技获近10亿元B轮融资 (Jixin)](https://www.jixin.tech/hangye/1798.html)
3. [高端光学树脂研发生产商——拓烯科技再获亿元战略投资 (Jixin)](https://www.jixin.tech/mobile/show.php?bclassid=1&classid=1&cpage=&id=2943&style=0)
4. [拓烯科技获近10亿元B轮融资，熙诚金睿、雷石投资联合领投 (Huxiu)](https://pro.huxiu.com/focus/96063.html)
5. [2026 China Chemical New Materials Industry: Market Scale and Competitive Landscape (Tianxia Gongchang Research)](https://faxiangongchang.com/en/reports/china-chemical-materials-2026)
6. [China's first polyolefin elastomer (POE) industrial equipment is put into production (51dmapa)](https://www.51dmapa.com/beoyi-chinas-first-polyolefin-elastomer-poe-industrial-equipment-is-put-into-production/)
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*Initially written Sep 17, 2026 · Edited: Oct 11, 2026; Oct 15, 2026*
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License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license