Changsha Dialine New Material Sci. & Tech

What Changsha Dialine New Material Sci. & Tech does

Changsha Dialine New Material Sci. & Tech Co., Ltd. (Shenzhen Stock Exchange ChiNext, ticker 300700.SZ) is a Chinese listed advanced materials company founded in 2009 that operates across a "4+1" industrial pattern covering photovoltaic, consumer electronics, hydrogen/energy storage, semiconductor and AI, plus diamond wire applications. Headquartered in Changsha, Hunan Province with 1,000+ employees and a group structure spanning three wholly-owned subsidiaries (Zhuzhou Dialine 2018, Gengchi New Energy 2020, Daehwa Technology 2021, Dialine Precision Manufacturing Huizhou 2025), five controlled subsidiaries (including Changsha Dite and Hunan Lihui acquired 2023), and one invested company, Dialine is China's first company to achieve industrial mass production of electroplated diamond wire, breaking the prior Japanese and American technology monopoly.

The company's core technology platform centers on electroplated diamond wire manufacturing — with what it describes as the world's most complete product specification library (carbon steel 26μm–550μm, tungsten wire diamond wire 24μm–30μm, ring diamond wire, down to 12μm in the tungsten family) — supplemented by a proprietary powder pressing integrated flow channel bipolar plate process (37 patents held by Gengchi subsidiary) and self-developed ultra-fine tungsten wire technology extending into semiconductor cutting consumables and embodied robot tendon ropes. Its product matrix includes carbon steel and tungsten wire diamond wire, tungsten wire rope for PV monocrystalline furnaces, high-purity quartz sand, graphite composite bipolar plates for fuel cells and flow batteries, and functional new materials and wet electronic chemicals for IC and display panel manufacturing. The company operates a 5,200 sqm dedicated R&D building, holds 90+ group-wide patent applications with 70+ granted patents, formulated China's electroplated diamond wire industry standard JB/T 12543-2015 as first drafter, and co-developed an AI visual large model inspection system with Hunan University.

Dialine generates revenue primarily through one-time product sales under long-term procurement framework agreements with major Chinese PV manufacturers — named customers include Longji, Xiexin, Tongwei, Yuzhou, and Shangji/Jingyun, with a 2023 framework agreement with one major customer valued at approximately 920 million yuan over two years. The company employs a hybrid sales-led go-to-market combining direct regional sales teams with agency distribution for international markets (Russia, Korea, Japan, Turkey), supported by participation in major global exhibitions (SNEC, FCVC, MARBLE IZMIR, Xiamen Stone Fair, Shanghai Long Duration Energy Storage). After turning around from a net loss of 81.36 million yuan in 2021 to net profit of 90.96 million yuan in 2022 on revenue of 643 million yuan (137.42% YoY growth, gross margin 34.1%, net margin 16.3% in Q1–Q3), the company has aggressively scaled capacity from 80万km/month to a targeted 600万km/month (7,200万km/year), with the Gengchi bipolar plate product line commercialized in late 2025 and continued international and vertical expansion through 2026.

Name

Changsha Dialine New Material Sci. & Tech

Legal name

长沙岱勒新材料科技股份有限公司

Website

https://dialine.cn

Company type

Public

Founded year

2009

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Changsha Dialine New Material Sci. & Tech is a Chinese listed advanced materials manufacturer, China's first to achieve mass production of electroplated diamond wire. It serves photovoltaic, hydrogen/energy storage, semiconductor and consumer electronics industries via an integrated multi-product matrix across eight group entities.

Ownership category

akta.pro rank

Product category

Industrial Diamond Wire & Advanced New Materials

NAICS

Spring and Wire Product Manufacturing (33261), Other Fabricated Wire Product Manufacturing (332618), Battery Manufacturing (33591)

SIC

Industrial Organic Chemicals (2860), Jewelry, Silverware & Plated Ware (3910)

akta.pro primary industry

Electroplating & Metallization Chemicals (Cu/Ni/Au plating, additives) (IMAEAKAK)

akta.pro secondary industries

Battery & Energy Storage High-Purity Chemicals (Electrolyte salts/solvents, additives) (IMAEAKAM), Dielectrics & Insulating Materials Chemicals (Low-k/High-k precursors) (IMAEAKAJ)

Keywords

• Electroplated diamond wire
• Tungsten wire saw
• Photovoltaic wafer cutting
• High-purity quartz sand
• New material manufacturing

Headquarters

HQ city

Liuyang

HQ country

China

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Infrastructure

Revenue model

1. Diamond Wire Products (Carbon Steel & Tungsten Wire): Primary revenue driver. Products include carbon steel diamond wire (26μm–550μm), tungsten wire diamond wire (24μm–30μm), and ring diamond wire for cutting silicon, sapphire, stone, magnetic materials.
2. Tungsten Wire Rope (钨丝绳): Used in monocrystalline furnace pulling systems in PV sector. Key component for stable and efficient monocrystalline silicon production.
3. High-Purity Quartz Sand (高纯石英砂): Key material for quartz crucible production in PV crystalline silicon chain.
4. Graphite Composite Bipolar Plates (石墨复合双极板): Core functional components for fuel cells and flow batteries in hydrogen energy and energy storage sectors. Produced by subsidiary Gengchi New Energy.
5. Functional New Materials & Wet Electronic Chemicals: Used in integrated circuits and display panel industries for semiconductor and electronic products.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Changsha Dialine New Material Sci. & Tech manufactures and sells electroplated diamond wire saw products (carbon-steel core, tungsten-wire core, and ring/loop variants), high-purity tungsten wire rope, high-purity quartz sand, graphite composite bipolar plates for hydrogen fuel cells, and wet electronic chemicals for semiconductors. Its products are used primarily as consumables and engineered inputs in the photovoltaic wafer cutting industry, with secondary applications in semiconductor, sapphire, magnetic material, and hydrogen-energy industries.

Product overview

Changsha Dialine New Material Science and Technology Co., Ltd. is a diversified advanced materials and precision manufacturing company with a comprehensive product portfolio covering photovoltaic, hydrogen energy/storage, LED and semiconductor, and consumer electronics sectors. The company has established a multi-product matrix including electroplated diamond wire (carbon steel and tungsten wire variants), ring diamond wire, tungsten wire ropes, high-purity quartz sand, graphite composite bipolar plates, and electronic specialty materials, providing integrated solutions for target customers. The core technology is centered on diamond wire products, extended with upstream and downstream materials including tungsten wire ropes for monocrystalline furnaces and bipolar plates for hydrogen fuel cells.

Differentiator

Problem solved

Functional benefit

Brands

• 耕驰新能源: Subsidiary focusing on hydrogen energy and energy storage - graphite composite bipolar plates using powder compression technology for fuel cells and flow batteries. Holds 37 independent patents with 500,000 units/year automated production capacity.

Products and services

• Carbon Steel Diamond Wire (碳钢丝金刚石线)

Quantifiable outcome

• 2022 annual revenue 6.43 billion yuan, up 137.42% YoY; net profit 90.9585 million yuan, up 208.83% YoY from loss
• +6 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature8 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Dialine Precision Manufacturing (Huizhou) (岱勒精密制造(惠州)有限公司)coreOthers · 1 August 2025Established August 2025 to deepen supply chain integration and customer collaboration in consumer electronics sector, advancing company's transformation toward semiconductor and consumer electronics core services.
• Hygood (氢璞创能科技有限公司)coreStrategic or Co-development Partner · 1 April 2025Gengchi New Energy signed strategic cooperation framework agreement with Hygood in April 2025 covering hydrogen fuel cell and flow battery core materials, technology R&D, production collaboration, and market expansion. Both parties aim to jointly promote efficient development of the new energy industry and contribute to achieving dual-carbon goals.
• Changsha Dite — Dialine Controlled SubsidiarycoreOthers · 1 April 2025Controlled subsidiary focused on high-strength tungsten wire products for PV applications. Achieved batch cold-drawn tungsten wire electroplating and drawing production, reaching industry benchmark quality levels in client applications. Capacity potential of 1200万公里/year.
• Hunan University (湖南大学)coreStrategic or Co-development Partner · 1 March 2025Dialine signed technology development agreement with Hunan University in March 2025 for collaborative development of 'AI Visual Large Model Assisted Analysis System' — achieving full-process AI visual automatic quality inspection, grading and real-time process control from diamond powder to finished diamond wire products. The company has also established Hunan University as a fixed internship teaching base since 2019.
• Lihui New Materials (湖南黎辉新材料科技有限公司)coreOthers · 1 January 2023Controlled subsidiary acquired in 2023 to expand ultra-high-purity quartz sand product line. Entered Hunan Province 2025 first batch Science and Technology SME list.
• Daehwa Technology (长沙岱华科技有限公司)coreOthers · 1 January 2021Subsidiary established 2021 to deploy electronic special materials product line. Won Hunan Province 2025 Specialized, Special and New SME recognition. Specialized in functional new materials and wet electronic chemicals.
• Gengchi New Energy (湖南耕驰新能源科技有限公司)coreOthers · 1 January 2020Wholly-controlled subsidiary established 2020 to enter hydrogen energy and energy storage sectors. First to achieve national-scale mass production of powder pressing integrated flow channel bipolar plates. Holds 37 independent patents. 50万组/year automated capacity. Entered Hunan Province Specialized, Special and New SME list in 2026.
• Zhuzhou Dialine (株洲岱勒新材料有限责任公司)coreOthers · 1 January 2018Subsidiary established 2018 in Zhuzhou, certified as provincial enterprise technology center. Main manufacturing base alongside Changsha headquarters.
• Yanshan University (燕山大学)minorStrategic or Co-development PartnerCompany chairman visited Yanshan University in November 2020 for cooperation exchange. Dialine chairman also serves as Hunan alumni association president of Yanshan University.

Scale indicators15 records

Recent moves16 records

Expansion highlights7 records

Others

• Element Six (De Beers Group): Global synthetic diamond and supermaterial producer — supplier of synthetic diamond powders used as feedstock in electroplated diamond wire production. Adjacent ecosystem participant to Dialine's core manufacturing chain.

Emerging players

• 欧晶科技 (Ojing Technology, 001269.SZ): Chinese listed producer of PV-grade quartz crucibles and silicon materials. Closely adjacent to Dialine's high-purity quartz sand (Lihui New Materials subsidiary) — both serve the PV crystalline silicon chain with comparable customer set.
• 高测股份 (Gaoces, 688310.SH): Chinese STAR Market listed maker of wire saw cutting equipment and diamond wire consumables for PV silicon wafer slicing. Both equipment supplier and downstream consumer/diamond wire buyer to Dialine — comparable customer base and end market.

Direct peers

• 恒星科技 (Stellaris Technology, 002132.SZ): Chinese listed maker of steel wire rope and an emerging tungsten wire producer supplying PV customers. Overlaps with Dialine on tungsten wire diamond wire substrates and PV cutting consumables.
• 三超新材 (Sanchao New Materials, 300554.SZ): Chinese ChiNext-listed maker of diamond wire and other superhard abrasive products for PV, stone, sapphire and magnetic material cutting. Closely comparable in product portfolio (carbon steel & tungsten diamond wire), though smaller scale.
• 美畅新材 (Misheng New Materials, 300861.SZ): Largest Chinese publicly listed producer of electroplated diamond wire for PV silicon wafer cutting. Direct head-to-head competitor of Dialine across Longji, Tongwei and other major PV customers, with overlapping spec range and similar China-first positioning.

Broad incumbents

• 中钨高新 (China Tungsten & Hightech Materials, 000657.SZ): Major Chinese tungsten products and cemented carbide producer controlled by China Minmetals. Comparable on tungsten raw material supply and adjacent on hard-metal cutting tools that overlap with diamond wire applications.
• Saint-Gobain (Surface Conditioning / Abrasives): Global industrial materials and abrasives major with diamond tooling products and silicon carbide abrasives. Broad incumbent in the same industrial cutting consumables category as Dialine, though focused on different geographies and segments.
• Asahi Diamond Industrial: Japanese global leader in industrial diamond tools and abrasives, including electroplated diamond wire. The technology monopoly that Dialine claims to have broken; serves as the international benchmark and remains a global competitor.
• 厦门钨业 (Xiamen Tungsten / XTC, 600549.SH): Major Chinese tungsten and rare earth materials producer that supplies tungsten wire feedstock and competes in the tungsten wire diamond wire space. Vertically integrated upstream of Dialine but also a partial substitute at the finished tungsten-wire product level.

Market position

Strengths5 records

Weaknesses6 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/changsha-dialine-new-material-sci-tech-co-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Changsha Dialine New Material Sci. & Tech