Westech

What Westech does

Westech (Guangdong West Tech New Material Co., Ltd., 广东威斯达新材料有限公司) is a privately held Chinese specialty chemical manufacturer founded in 2012 and headquartered at the Deqing County Industrial Park in Zhaoqing, Guangdong. It produces, processes, and sells rosin derivatives, food additives, and chemical products built on bio-based gum rosin and plant-derived glycerol, with all product lines exceeding 96% bio-based content. The company operates six advanced rosin resin production lines with stated annual capacity of 50,000 tonnes (one source cites 30,000 tonnes), occupies 38,000 m² of land with approximately 20,000 m² of built factory area, and employs 51–100 people. Westech holds registered capital of RMB 30 million, 7 invention patents, 9 utility patents, and 9 software copyrights, and its 'Weisda' trademark is registered in 13 countries and regions.

The company's technology base centers on three differentiated processes: a sulfuric-acid polymerization route for polymerized rosin operated exclusively in China through minority-held subsidiary Yunfu Shengda Rosin Chemical Co., Ltd.; phase-inversion emulsification technology used to produce the AT/WT/AP solvent-free water-based rosin dispersions; and esterification processes that yield food-grade and industrial-grade rosin esters. The product portfolio spans four families: water-based tackifying resin dispersions for adhesives; polymerized rosin and its glycerol/pentaerythritol esters for inks, coatings, and adhesives; food-grade rosin resins used as chewing gum base and food packaging adhesive; and road marking resins plus base inputs such as gum rosin, hydrogenated rosin, disproportionated rosin, turpentine, and refined hydrogenated rosin. The firm holds ISO 9001, ISO 14001, ISO 22000, FSSC 22000, EU REACH, Halal, and Kosher certifications, an EcoVadis medal (Silver in 2023, Bronze in 2025), National High-Tech Enterprise status, and has authored 13 enterprise standards while participating in 2 national, 1 industry, and 2 group standards.

Westech runs a direct B2B sales model with no distributors or resellers. A Guangzhou office in Panyu District handles all commercial contacts, while production and shipping originate from the Zhaoqing Deqing factory. Pricing is quote-based across standard packaging configurations (25 kg kraft bags, 200–225 kg galvanized iron drums, 1000 kg IBC containers), with multi-year contracts typical. The firm sells into adhesives manufacturers (hot-melt, pressure-sensitive, water-based, depilatory wax), inks and coatings producers (gravure, offset, UV-curable), food manufacturers (chewing gum base, beverage thickeners, food packaging adhesives), road marking paint producers, and electronics/industrial flux manufacturers, both domestically and to multinational buyers. Chairman Xie Jinjian (谢锦健), who founded the company, also serves as Vice Chairman of the Rosin Branch of the China National Forest Product Industry Association, anchoring the firm's role in industry standards and policy direction.

Name

Westech

Legal name

广东威斯达新材料有限公司

Website

http://www.westtechchina.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

51–100 employees

Short description

Westech is a privately held Chinese specialty chemical manufacturer founded in 2012 that produces bio-based rosin derivatives, food-grade resins, water-based tackifying dispersions, and industrial resins from its 50,000-tonne Zhaoqing facility, supplying adhesive, ink, coating, food, road-marking, and electronics customers globally through direct B2B sales.

Ownership category

akta.pro rank

Product category

Specialty Chemicals

NAICS

Adhesive Manufacturing (325520), Paint, Coating, and Adhesive Manufacturing (3255)

SIC

Miscellaneous Chemical Products (2890), Industrial Organic Chemicals (2860)

akta.pro primary industry

Adhesives & Sealants Chemicals (IMAEABAA)

akta.pro secondary industry

Emulsifiers & Stabilizer Systems (Lecithin, Mono/Diglycerides, Blends) (CRADAOAE)

Keywords

• Rosin derivatives
• Specialty chemicals
• Water-based tackifiers
• Food grade resins
• Industrial resins

Headquarters

HQ city

Zhaoqing

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Rosin Resin Products (B2B Manufacturing & Sales): The company manufactures and sells rosin-based chemical products to industrial customers. Revenue is generated through direct B2B sales of specialty chemical products including water-based dispersions, food-grade resins, industrial resins, and polymerized rosin. Products are sold in various packaging formats (drums, bags, IBC containers) to manufacturers in adhesives, coatings, inks, food, and other industries.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Westech produces, processes, and sells rosin derivatives, food additives, and chemical products. The company manufactures water-based rosin resin dispersions, polymerized rosin, food-grade rosin resins for chewing gum and food packaging, and a broad portfolio of industrial resins (glycerol esters, pentaerythritol esters, hydrogenated/modified resins, maleic acid resins, liquid rosin esters, composite modified esters, and road-marking resins) from bio-based rosin and plant-derived glycerol with bio-based content exceeding 96%. These products serve B2B industrial customers in adhesives, inks, coatings, food, road marking, and electronics sectors.

Product overview

Westech (广东威斯达新材料有限公司) is a manufacturer specializing in rosin derivatives and chemical products. The product portfolio includes four main categories: Water-based Rosin Resin Dispersion (AT/WT/AP Series) for adhesive applications; Food Grade Rosin Resin for chewing gum, bubble gum, and food packaging; Industrial Resins including glycerol esters, pentaerythritol esters, hydrogenated/modified rosin resins, maleic acid resin, liquid rosin ester, composite modified ester, and road marking resin for inks, coatings, and adhesives; and base rosin products including gum rosin, hydrogenated rosin, disproportionated rosin, turpentine, and refined hydrogenated rosin. The company operates six advanced rosin resin production lines with an annual production capacity of 50,000 tons (recently updated to 30,000 tons in exhibition materials). All products use bio-based rosin and plant-derived glycerol as raw materials with bio-based content exceeding 96%.

Differentiator

Problem solved

Functional benefit

Products and services

• Water-based Rosin Resin Dispersion (AT/WT/AP Series) Solvent-free rosin polyol ester resin water dispersion using unique phase-inversion emulsification technology. Available in AT Series, WT Series, and AP Series variants with narrow particle size distribution, stable quality, and long storage life. Used as a tackifier for acrylic latex polymers in label, tape, construction, and water-based adhesive applications. Packed in IBC plastic totes (1000 kg) or 200 L plastic drums (200 kg).
• Polymerized Rosin (West Tech Shenda) Modified rosin product produced from gum rosin using the sulfuric acid process (the only facility in China using this process, via subsidiary Yunfu Shengda). Contains abietic acid-type resin dimer with high softening point, anti-crystallization properties, and excellent antioxidant performance. Used in inks, adhesives, paints, coatings, soldering flux, and synthetic resins. Packed in 25 kg kraft paper bags or 220 kg galvanized iron drums.
• Food Grade Rosin Resin Light yellow transparent glassy solid produced from premium gum rosin, polymerized rosin, hydrogenated rosin, and vegetable glycerol via refining, esterification, and special odor-removal processes. Features stable performance, low odor, low acid value. Used as base for chewing gum and bubble gum, depilatory wax, food adhesives, inks, and coatings. Available in 25 kg bags or 65 kg paper drums. Holds FSSC 22000, ISO 22000, Kosher, and Halal certifications.
• Glycerol Ester of Gum Rosin (138# Resin) Also known as 138# resin. Produced by esterification of gum rosin with glycerol under catalytic reaction. Soluble in ester solvents, petroleum products, and turpentine. Improves initial and persistent viscosity of EVA hot melt adhesive with good cold resistance. Used in adhesives, coatings, inks, and electronic applications.
• Pentaerythritol Ester of Gum Rosin (145# Resin) Also known as 145# resin. Irregular yellowish transparent solid from esterification of gum rosin with pentaerythritol. Light color, anti-yellowing, heat resistant, high adhesive. Improves EVA hot melt adhesive viscosity and cold resistance. Used in adhesives, laminating adhesives, adhesive sticks, inks, and electrical equipment.
• Hydrogenated Rosin Modified Resin (WH Series) WH series - Partially hydrogenated rosin esterified with glycerol or pentaerythritol. Nearly water-white color, low odor, excellent thermal stability. Specially suitable for premium sanitary product hot melt adhesives and adhesives with strict appearance requirements.
• Modified Ester of Gum Rosin Modified gum rosin polyol esters made from refined gum rosin through hydrogenation, esterification, and stabilization processes. Pale yellow, transparent solid. Compatible with various solvents. Suitable for hot-melt adhesives, road marking paints, lacquers, and inks.
• Maleic Acid Resin (422#) Yellowish to reddish-brown transparent solid produced from quality gum rosin with maleic anhydride and glycerol esterification. Best mixability with nitro cotton. Suitable for spray paint, printing iron, varnish, and colorful baking finish. Used in paint-making, printing inks, and paper polishing paints.
• Liquid Rosin Ester (WL Series) Transparent liquid resin from rosin and polyol esterification modification. Features excellent antioxidant properties and non-drying properties. Increases initial tack and open time of adhesives. Low odor, light color, good solubility. Used in solvent-based pressure sensitive adhesives, SBS/SLS hot melt pressure sensitive adhesives, and elastic flooring adhesives.
• Composite Modified Ester of Gum Rosin (WMR Series) WMR series - Irregular hemisphere or flake products from rosin, polymer, unsaturated dibasic acid and polyol condensation and esterification. Specially designed for road marking coatings with pressure resistance, wear resistance, fast drying, and anti-yellowing properties.
• Road Marking Resin Environment-friendly modified natural resin with light color, low odor, fast drying speed, good leveling and impact resistance. Strong adhesion to various pavements with heat resistance, weather resistance, yellowing resistance and contamination resistance. Specifically used as binder in hot-melt road marking coatings.
• Gum Rosin / Non-Crystallized Rosin Natural resin mainly composed of resin acids. Gum rosin dissolves easily in many solvents. Non-crystallized rosin has improved anti-crystallization performance, heat resistance, and aging resistance. Used as important raw material for papermaking, coatings, inks, rubber, and rosin ester resins.
• Glycerol Ester of Polymerized Rosin (WPR Series) WPR series - Hard, pale amber thermoplastic resin from glycerol esterification of polymerized rosin. Higher softening point, better color stability, and better solution properties than regular rosin glycerol esters. Used in lacquers, varnishes, adhesives, and wax modification.
• Pentaerythritol Ester of Polymerized Rosin (WPR Series) WPR series - Hard, amber colored thermoplastic resin from pentaerythritol esterification of partially dimerized rosin. Higher softening point and greater resistance to oxidation than regular rosin esters. Used in varnishes, inks, and adhesives.
• Alcohol-Soluble Resin Chemical substance from unsaturated acid modified rosin and polyol partial esterification derivatives. Designed for alcohol-soluble gravure printing inks, varnishes, and water-based inks. Features light color, fast drying, good hardness, lasting gloss, and alcohol solubility.
• Gum Rosin Natural resin mainly composed of various resin acids. Easily soluble in multiple solvents with unique chemical activity. Important raw material for papermaking, soap, coatings, paints, inks, rubber, synthetic resins, electronics, and organic synthesis.
• Hydrogenated Rosin Produced from gum rosin under specific temperature and pressure using palladium/carbon catalyst. Double bonds of rosin resin acids are partially saturated through the hydrogenation process.
• Disproportionated Rosin Yellowish transparent solid from gum rosin processed under catalytic reaction to form stable hydrocarbon compounds. Used in synthetic rubber manufacturing, water-soluble pressure sensitive adhesives, and tackifying agents.
• Turpentine Volatile aromatic terpene mixture from rosin-rich pine trees. Main component is pinene with special chemical properties as excellent solvent. Used in coatings, synthetic camphor, synthetic resins, fragrances, and other organic synthesis industries.
• Refined Hydrogenated Rosin Refined and purified from hydrogenated rosin with extremely light color, high softening point, high acid value, high viscosity, and low heavy metal content. Used in adhesives, coatings, inks, electronic industrial flux, edible ester gum, and food additives.
• High Bio-Based Water-Based Tackifying Emulsion High bio-based content water-based tackifying emulsion for adhesive applications, showcased at 2025 China International Coatings Exhibition.
• Full Bio-Based Food Grade Rosin Resin Full bio-based food grade rosin resin for chewing gum and food applications, showcased at 2025 Shanghai exhibitions.
• Bio-Based UV Tackifying Resin Bio-based UV tackifying resin for UV-curable adhesive and coating applications, introduced at 2024 Shanghai International Adhesive and Sealant Exhibition.

Quantifiable outcome

• All products bio-based content >96% — meets EU sustainability requirements and carbon footprint evaluation standards
• +1 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• 广州市德庆商会 (Guangzhou Deqing Chamber of Commerce)minorGTM or Marketing Partner · 8 March 2024Westech Chairman Xie Jinjian serves as President of the Guangzhou Deqing Chamber of Commerce. The商会 facilitates government-business connections, investment attraction, and家乡 (hometown) development initiatives. On March 8, 2024, the Zhaoqing Deqing County Investment Promotion Office was officially established at the Chamber's premises. Westech participates in商会-led community service activities including拥军优属 (supporting military families) and charity donations.
• 仲恺农业工程学院 (Zhongkai University of Agriculture and Engineering)coreStrategic or Co-development Partner · 28 July 2022Academic partnership through the 'Guangdong (Deqing) Westech Rosin Product Deep Processing Technology Small Institute' (广东德庆威斯达松香产品深加工科技小院). The partnership focuses on graduate student training, joint research in natural resource chemistry, technology development, and rural revitalization. The university team led by Prof. Li Qiaoguang collaborates with Westech's R&D team on rosin deep-processing technologies and product innovation.
• 华侨大学 (Huaqiao University)minorStrategic or Co-development Partner · 28 July 2022Professor Rao Xiaoping (National Outstanding Youth, professor and doctoral supervisor) provided strategic advice on industry-university-research cooperation during the Technology Small Institute launch event. Contributed insights on technology R&D, talent cultivation, platform construction, and scientific research funding collaboration.
• 广东德美精细化工集团股份有限公司 (Guangdong Demei Fine Chemical Group Co. Ltd)minorStrategic or Co-development Partner · 28 July 2022Technical Director Liang Yongbiao provided guidance on deep technology enterprise cooperation models and offered suggestions on science and technology innovation and achievement promotion cooperation modes at the Technology Small Institute partnership event.
• 云浮市晟达松脂化工有限公司 (Yunfu Shengda Rosin Chemical Co. Ltd)coreStrategic or Co-development Partner · 1 January 2012A joint venture/subsidiary company in which Westech holds a stake. This facility is China's only rosin polymerization plant using the sulfuric acid process. It produces high-quality polymerized rosin (聚合松香) as a key input for Westech's downstream product lines. This partnership provides Westech with exclusive access to a unique and proprietary raw material supply for its specialty rosin resin products.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Kraton Corporation: Global leader in styrenic block copolymers and pine-chemical-based tackifying resins (including rosin esters and terpene phenolics) for adhesives, coatings, and personal care. Closest direct competitor to Westech in rosin-based tackifier chemistry at much larger scale.
• Pinova Inc. Specialty manufacturer of rosin-based and terpene-based resins, including polymerized, hydrogenated, and esterified rosins for adhesives, chewing gum, and flavors/fragrances. Highly comparable product portfolio to Westech across both food-grade and industrial rosin chemistry.
• DRT (Dérivés Résiniques et Terpéniques): France-based global leader in rosin and terpene derivatives for adhesives, inks, coatings, and food applications. Direct competitor in polymerized rosin, hydrogenated rosin, and rosin esters with comparable chemistry and broader international distribution.
• Lawter (a Harima Chemicals Group subsidiary): Specialty producer of rosin-based and terpene-based tackifier resins for printing inks and adhesives. Closely comparable in rosin ester and modified rosin product lines, especially in ink-grade applications.

Broad incumbents

• Eastman Chemical Company: Diversified specialty chemicals major with an Additives & Functional Products segment including rosin-based and hydrocarbon tackifier resins for adhesives and coatings. Much larger scale and broader portfolio, but directly overlapping in rosin chemistry.
• Arkema: Global specialty chemicals leader with Bostik adhesive solutions and coating additives divisions. Provides broader competition in the adhesives and coatings value chain into which Westech sells, and competes in bio-based specialty polymers.
• BASF SE: World's largest chemical company with adhesive raw materials, coating additives, and food ingredient divisions. Competes broadly across Westech's downstream customer verticals and is a global benchmark for bio-based raw material development.

Regional players

• Guangdong Jiangshun Chemical Co., Ltd. Chinese rosin derivatives manufacturer producing polymerized rosin, hydrogenated rosin, and rosin esters for adhesives, inks, and coatings. Direct China-based competitor with overlapping customer base and comparable product range.
• Wuzhou Sunshine Forestry & Chemicals Co., Ltd. One of China's largest gum rosin and turpentine producers with deep-processing into rosin resins. Competes with Westech in upstream rosin supply and downstream rosin ester / polymerized rosin markets from a regional base in Guangxi.

Emerging players

• EcoGreen Fine Chemicals (a Sinopec subsidiary): Chinese producer of terpene and rosin-based specialty chemicals including polymerized rosin and hydrogenated rosin for adhesives and flavors. Emerging direct competitor in the domestic Chinese market with growing technology capability.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/yinlong-industrial-co-ltd-

Compliance24 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Westech