China CVD Diamond Supply Chain Directory 04: Films, Coatings, BDD and Composites

Batch 4 of Wonsen’s mainland China and Hong Kong CVD diamond supply-chain directory covers polycrystalline thick films, free-standing plates, diamond coatings, nano and functionalised diamond, doped diamond, boron-doped diamond and thermal composites. It contains 21 entities that met the directory’s public-source verification threshold.

Publication notes

• Entries follow collection order and are not a ranking of scale, capability or market position.
• Multi-category entities are classified by principal products visible in current public information.
• Inclusion is not technical certification, commercial endorsement or procurement advice.
• Capacity, size and performance claims should be verified directly before engagement.

Directory

No.	Entity	Supply-chain position	Publicly reported scope
1	Hebei Anbicheng Diamond Materials	C3 polycrystalline thick film; linked to D3 metallisation/bonding and E4 thermal management	CVD diamond thick film, titanium, chromium, copper and nickel coating services, and diamond heat spreaders.
2	Hebei Plasma Diamond Technology	C3 polycrystalline thick film; linked to E4 thermal management and A1 CVD equipment	CVD diamond films, heat spreaders and large-area free-standing thick films.
3	Henan Feimeng Diamond	C3 polycrystalline thick film; linked to C7 composites and E4 thermal management	CVD thick film, thermally conductive diamond powder, diamond-copper materials and heat spreaders.
4	Henan Fengyouchuang Materials Technology	C3 polycrystalline thick film; linked to E4 thermal management and E6 AI packaging	Company materials describe 6- and 8-inch flexible polycrystalline diamond films and heat spreaders for AI/GPU cooling; size and production status require verification.
5	Henan Huanghe Whirlwind	C7 diamond composites; linked to C1 lab-grown diamond and E1 jewellery	Superhard and diamond composites, lab-grown rough and polished diamond, CVD single crystal and a consumer brand.
6	Hunan Xinfeng Technology Group	C6 doped diamond/BDD; linked to E11 electrochemistry and C3 thick film	CVD boron-doped diamond films, BDD electrode materials, electrodes and advanced electrochemical oxidation systems.
7	Huahe Integrated Power (Xiamen) Semiconductor Technology	C7 composites; linked to E4 thermal management and E6 AI packaging	Diamond-copper composites, CVD heat spreaders and thermal materials for GPU and CPU applications.
8	Luoyang Yuxin Diamond	C3 polycrystalline thick film; linked to E3 optical windows and E4 thermal management	Polycrystalline CVD diamond, composite plates, optical windows and heat spreaders.
9	Xiamen Honglu Lianchuang Tools	C4 diamond and wear-resistant coatings; linked to E2 tooling	HFCVD diamond-coated tools and wear-resistant CVD diamond cutting tools.
10	Shanghai Fengli Precision Tools	C4 diamond and wear-resistant coatings; linked to E2 tooling	CVD diamond-coated tools for graphite and composite-material machining.
11	Anhui Shangxin Jinggong New Materials Technology	C7 thermal composites	Diamond-copper and diamond-aluminium composites made with pulsed-current pressure sintering for data centres, packaging, power electronics, lasers and RF communications.
12	Hunan Xinjuneng Technology	C7 composites; linked to C4 coatings and E4 thermal management	CVD diamond coatings, diamond composites and thermal-management materials.
13	Tianjin Baolixin Superhard Materials	C3 polycrystalline thick film	Polycrystalline CVD diamond materials and related processing services.
14	Shanghai Jiaoyou Diamond Coating	C4 diamond coatings; linked to E2 tooling and C3 thick film	CVD diamond-coated drawing dies, wire dies, compaction dies, cutting tools and welding sleeves.
15	Shenzhen Haimingrun Superhard Materials	C4 diamond coatings	Polycrystalline diamond, CVD diamond-coated drill bits and wear components.
16	Xi’an Carbon Star Semiconductor Technology	C6 doped diamond/BDD; linked to E7 semiconductor wafers and C2 functional single crystal	Electronic-grade CVD single-crystal substrates and boron-doped diamond electrodes.
17	Sichuan Natu Technology	C4 diamond coatings	CVD nanodiamond-coated wire dies, coated cutting tools and wear-resistant tools.
18	Henan Tanzhen Core Materials Technology	C3 polycrystalline thick film; linked to C2 functional single crystal and A1 CVD equipment	Heteroepitaxial CVD single crystal, larger diamond wafers, diamond-copper composites, functional diamond and MPCVD growth equipment.
19	Henan United Precision Materials	C7 composites; linked to E4 thermal management	Diamond powder, grinding and polishing materials, and diamond thermal-management materials.
20	Nanjing Ruiwei New Materials Technology	C7 composites; linked to E4 thermal management	High-thermal-conductivity composites including diamond-copper and chip thermal-management components.
21	Ningbo Saimo Technology	C7 composites; linked to E4 thermal management and E6 AI packaging	Diamond-copper thermal-management materials and cooling solutions.

Corrections

Companies may submit verified additions or corrections through Wonsen’s contact page.

This directory will be updated as public information and verified company feedback become available.