What Shenzhen Senior Technology Material does

Shenzhen Senior Technology Material Co., Ltd. is a Shenzhen-headquartered, publicly traded (SZSE: 300568 since December 2016; SEHK: 6067 since June 2026) manufacturer specializing in lithium-ion battery separators. Founded in September 2003 by Chairman Chen Xiufeng, the company was the first Chinese enterprise to industrialize dry-process separator production and the world's first to propose the concept of a power-battery lithium separator. It operates one headquarters, nine production bases across China (Shenzhen, Hefei, Changzhou, Jiangsu, Nantong, Foshan), Japan, Sweden, and an ASEAN base, with overseas R&D in Osaka and Eskilstuna. Over 3,000 employees serve customers worldwide.

The company's core product portfolio comprises dry-process separators (SD/SQ/ST/SZ series, 9-40 μm), wet-process separators (SW1/SW2/SW3/SW5 series, 5-25 μm), and coated separators (CCS/PCS/MCS/MFS with Al2O3, Boehmite, PVDF, Nano-Composite, and Aramid coatings, 1-5 μm per side). These serve power batteries for EVs, 3C consumer electronics, energy storage systems, and aerospace applications. Functional membrane adjacencies include RO membranes, nano-fiber membranes, and high-performance composites. Senior holds 273+ patent applications (28 foreign) and 115 authorized patents, including a US and China-filed nano-composite polymer coating patent and a China Patent Excellence Award for a dry-process invention.

Senior earns revenue through B2B hardware sales via enterprise field sales to tier-1 cell manufacturers, with named customers including LG Chem (bulk supply since 2013), Samsung SDI, Panasonic, Murata, Nissan, Guoxuan High-tech, and EVE Energy. Pricing is quote-based and not publicly disclosed. The company expanded capacity aggressively via a 859 million CNY 2019 non-public issuance (Super Coating Plant) and a Hong Kong IPO in 2026 that raised approximately $170 million, with an internal capacity target of 16 billion square meters by 2027. Margins are thin (TTM net margin ~0.44%) against a debt-to-equity ratio of approximately 128%, reflecting heavy investment into a competitive Chinese separator market.

Name

Shenzhen Senior Technology Material

Legal name

Shenzhen Senior Technology Material Co., Ltd.

Website

https://senior798.com

Company type

Public

Founded year

2003

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Shenzhen Senior Technology Material is a Chinese manufacturer of lithium-ion battery separators, supplying dry, wet, and coated-process separators to global battery makers for electric vehicles, 3C electronics, energy storage, and aerospace applications.

Ownership category

akta.pro rank

Product category

Battery Separators

NAICS

Battery Manufacturing (33591)

SIC

Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Separators & Membranes Manufacturing (EUAFABAE)

Keywords

• Lithium battery separators
• Battery separator manufacturing
• Microporous membranes
• Coated battery separators
• EV battery components

Headquarters

HQ city

Shenzhen

HQ country

China

HQ region

Asia

Offices10 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Lithium-ion Battery Separator Sales: Primary revenue from R&D, manufacturing and sales of lithium-ion battery separators. Products include dry-process, wet-process, and coated-process separators serving electric vehicles, consumer electronics, energy storage systems, and aerospace sectors. The company also produces RO membranes and other functional film products.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Shenzhen Senior Technology Material researches, develops, manufactures and sells lithium-ion battery separators used as key components in lithium-ion batteries. The product portfolio includes dry-process separators (SD/SQ/ST/SZ series), wet-process separators (SW5/SW3/SW2/SW1 series), and coated separators (SH/SN/SF series) with ceramic, polymer and nano-composite coatings. The company also produces RO membranes, nano-fiber membranes and high-performance composite films for water treatment and filtration applications.

Product overview

Shenzhen Senior Technology Material is a global pacemaker in lithium-ion battery separators with a three-category core product portfolio: dry process separators (SD/SQ/ST/SZ series), wet process separators (SW5/SW3/SW2/SW1 series), and coated process separators (CCS/PCS/MCS/MFS series). The company also offers functional membrane products including RO membranes, nano-fiber membranes, and high-performance composites. Products serve electric vehicles, consumer electronics, energy storage systems, and aerospace sectors. The company was founded in 2003, listed on Shenzhen Stock Exchange in 2016 (stock code: 300568), and completed H-share listing on Hong Kong Stock Exchange in June 2026 (SEHK: 6067).

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Production capacity target of 16 billion square meters by 2027
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Beijing Yucheng Technology Co., Ltd.coreStrategic or Co-development Partner · 18 January 2024Strategic cooperation agreement to jointly promote industrialization and market promotion of polyimide-coating lithium battery separators. Beijing Yucheng's polyimide-coating separator products have advantages including ultra-high heat resistance, high breakdown voltage resistance, ultra-high melt-down temperature, and excellent wettability. Senior Material leverages its leading industry position and years of experience in industrialization and market resources.
• Guoxuan High-tech Co., Ltd.coreStrategic or Co-development Partner · 19 December 2018Strategic supplier relationship; awarded 'strategic supplier in 2019'. Guoxuan High-tech described Senior as 'a banner of China's new energy vehicle industry, laying foundation of low cost and high quality development of Chinese power lithium battery'. Cooperation with Guoxuan High-tech fills gap of new energy industry separator materials in Anhui province.
• EVE Energy Co., Ltd.coreStrategic or Co-development Partner · 7 December 2018Awarded 'best quality prize in 2018' at EVE Energy supplier conference. Close cooperation with industry leading customers in domestic market. 115 suppliers attended EVE Energy's 2019 supplier conference.

Scale indicators10 records

Recent moves15 records

Expansion highlights6 records

Broad incumbents

• Asahi Kasei: Japan-based diversified manufacturer and the historical global leader in lithium-ion battery separators through its Hipore and Celgard product lines. Directly comparable as a separator supplier to the same tier-1 battery cell customers (LG, Samsung, Panasonic) and competing across dry-process technology where Senior also claims a pioneer position.
• Toray Industries: Japanese chemical and materials conglomerate with a significant battery separator film business supplying major Japanese and Korean cell makers. Comparable as an established incumbent separator producer with proprietary coating technology competing for the same premium automotive-grade separator demand.
• Mitsubishi Chemical Group: Japanese chemical major with separator coating technology and broader battery materials portfolio serving international cell manufacturers. Comparable as an incumbent player with broader battery-materials exposure but direct overlap in coated separator supply for EV-grade cells.
• Ube Industries / UBE Corporation: Japanese chemical company producing polyolefin separator films and ceramic-coated separator materials for lithium-ion batteries. Comparable as a specialty separator materials producer serving global battery customers, with technology overlap in ceramic-coated separators.

Direct peers

• SK IE Technology (SKIET): Korean wet-process separator manufacturer spun out of SK Innovation, supplying lithium-ion battery separators globally including to SK On and external customers. Directly comparable as a wet/coated process separator specialist serving the same automotive and ESS end-markets as Senior.
• SEMCORP (Yunnan Energy New Material): China's largest lithium-ion battery separator manufacturer by capacity, listed on SZSE (002812), with deep ties to CATL and the broader Chinese cell ecosystem. Most direct domestic head-to-head competitor to Senior across dry, wet and coated separator technologies for EV and ESS applications.
• Cangzhou Mingzhu Plastic: Chinese BOPP film and lithium-ion battery separator manufacturer listed on SZSE (002108), supplying dry-process separators primarily to Chinese cell makers. Directly comparable as a domestic Chinese competitor in the same dry and coated process separator segments.
• Sinoma Science & Technology (CNBM): Subsidiary of China National Building Material (CNBM), expanding aggressively into lithium-ion battery separators as part of China's strategic materials build-out. Directly comparable as a Chinese state-backed separator producer scaling capacity to serve the same domestic EV and ESS demand.

Emerging players

• W-Scope: Japanese wet-process polyethylene separator manufacturer focused on EV applications, listed on the Tokyo Stock Exchange. Comparable as a specialized separator producer competing for premium wet-process and coated separator business with global cell makers.
• Beijing Yucheng Technology: Chinese developer of polyimide-coated separator technology with ultra-high heat resistance properties, currently in a strategic partnership with Senior Material. Comparable as a next-generation separator technology developer addressing high-safety EV and ESS applications where Senior's traditional PE/PP products face limits.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/shenzhen-senior-technology-material-co-ltd-

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries10 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Shenzhen Senior Technology Material