Dairen Chemical Corporation

What Dairen Chemical Corporation does

Dairen Chemical Corporation (大連化學工業股份有限公司), founded in 1979 in Taipei, Taiwan, is a privately held petrochemical manufacturer and core subsidiary of the Chang Chun Group (長春集團). The company operates 7 manufacturing sites across Taiwan (Kaohsiung Dashe, Kaohsiung Dafa, Yunlin Mailiao), Malaysia (Johor), Singapore (Jurong), and China (Jiangsu Yizheng, Liaoning Panjin). Dairen is Taiwan's sole producer of vinyl acetate monomer (VAM), with 1.12 million MT/year nameplate capacity, and produces an integrated downstream portfolio spanning VAE emulsions and redispersible powders, EVA emulsions, 1,4-butanediol (BDO), polytetramethylene ether glycol (PTMEG), allyl alcohol, ethyl acetate, tetrahydrofuran (THF), and specialty diols and alcohols.

The company's core technology differentiator is a proprietary allyl alcohol-based process for BDO and PTMEG production, which generates a materially lower carbon footprint than conventional natural gas or calcium carbide routes. Dairen is the world's first commercial-scale producer of low-carbon bio-based PTMEG, converting QIRA® bio-based BDO into PTMEG used in bio-based LYCRA® fiber (up to 70% renewable content, up to 44% carbon footprint reduction). The company holds over 50 international patents with approximately 90% commercialization rate, and has achieved consecutive EcoVadis Platinum ratings (top 1% globally, 2025-2026) alongside ISCC PLUS certifications across 6 products spanning all sites.

Dairen generates revenue through direct B2B sales of chemical intermediates to downstream manufacturers in adhesives, coatings, PVA/PVAc, construction materials, fiber production, pharmaceutical intermediates, and biofuel sectors across Asia-Pacific and global export markets. Pricing is quote-based and not publicly disclosed. The company's go-to-market is enterprise field sales with sustainability credentials (EcoVadis Platinum, ISCC PLUS, Green Partner Award from The LYCRA Company) serving as key competitive differentiators. The company also participates in Project TAME, a consortium developing a Traditional Chinese expert LLM with NVIDIA support, applying AI to predictive analytics, sales automation, and executive decision support.

Name

Dairen Chemical Corporation

Legal name

大連化學工業股份有限公司

Website

https://dcc.com.tw

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

11–50 employees

Short description

Dairen Chemical Corporation is a Taiwan-based petrochemical manufacturer, founded 1979, operating 7 sites across Asia as Taiwan's sole VAM producer with vertically integrated BDO, PTMEG, and VAE output, supplying adhesives, coatings, fiber, pharmaceutical, and biofuel industries globally.

Ownership category

akta.pro rank

Product category

Industrial Specialty Chemicals

NAICS

Petrochemical Manufacturing (32511), Resin and Synthetic Rubber Manufacturing (32521)

SIC

Industrial Organic Chemicals (2860), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)

akta.pro primary industry

Bulk Industrial Solvents (IMAEAAAE)

akta.pro secondary industry

Plasticizers & Solvents (Phthalates/Alternatives, Commodity Solvents) (IMAEADAK)

Keywords

• Vinyl acetate monomer
• Specialty chemical intermediates
• Polymer emulsions
• Bio-based PTMEG
• Industrial chemical manufacturing

Headquarters

HQ city

Taipei

HQ country

Taiwan

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Chemical Product Sales: Dairen Chemical generates revenue through the manufacture and sale of chemical products including Vinyl Acetate Monomer (VAM), VAE emulsions, VAE redispersible powders (VAEP), EVA emulsions, 1,4-Butanediol (BDO), PTMEG, allyl alcohol, ethyl acetate, and other specialty chemicals. Products are sold to domestic and international customers across multiple industries.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Dairen Chemical Corporation manufactures Vinyl Acetate Monomer (VAM) and a downstream portfolio of specialty chemicals, including VAE and EVA copolymer emulsions, 1,4-Butanediol (BDO), Polytetramethylene Glycol (PTMEG), allyl alcohol, THF, and various alcohol and glycol intermediates. The company operates a vertically integrated production chain from acetylene through VAM to downstream derivatives, including a proprietary bio-based route to PTMEG via allyl alcohol. Products are sold globally to industrial customers in adhesives, coatings, fibers, and pharmaceutical sectors.

Product overview

Dairen Chemical Corporation is a petrochemical company producing vinyl acetate monomer (VAM) and downstream products including VAE emulsions, VAE redispersible powders (VAEP), and specialty copolymers. The company also produces 1,4-butanediol (BDO) via a proprietary allyl alcohol process, with PTMEG being a key downstream product. The portfolio spans industrial gases (nitrogen, liquefied CO2), specialty diols and alcohols, and tetrahydrofuran. Dairen operates 7 manufacturing sites across Taiwan (Kaohsiung Dashe, Kaohsiung Faliang, Yunlin Mailiao), Malaysia, Singapore, and China (Jiangsu Yizheng, Liaoning Panjin). The company is a global leader in VAM production (1,120,000 MT/year) and BDO/PTMEG production, and is the world's first to produce bio-based PTMEG at commercial scale. Recent products include ISCC PLUS certified sustainable materials (VAM, VAE, VAEP, LCO2, EVA, PTG) and bio-based LYCRA® fiber input materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Vinyl Acetate Monomer (VAM) A core monomer produced from acetylene and acetic acid; foundational intermediate used downstream in polymer emulsion manufacturing and sold to industrial polymer producers.
• VAE (Vinyl Acetate-Ethylene Copolymer Emulsion) Water-based copolymer emulsion produced from VAM and ethylene; used as a binder in architectural coatings, adhesives, carpet backing, paper coatings, and construction materials.
• VAEP (Vinyl Acetate-Ethylene Redispersible Powder)

Quantifiable outcome

• 44% carbon footprint reduction for bio-based LYCRA® fiber using Dairen's PTMEG vs conventional fiber
• +3 more outcomes

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature5 records

Partnerships

Six partnerships are on record, tiered core, minor and flagship.

• Project TAME Consortium (繁體中文專家模型開源計畫)coreStrategic or Co-development Partner · 1 July 2024Project TAME (TAiwan Mixture of Experts) is an open-source traditional Chinese large language model initiative co-founded by Changchang Group (長春集團, parent of Dairen Chemical), Pegatron (和碩聯合科技), Chang Gung Memorial Hospital (長庚醫院), Unimicron (欣興電子), and TechOrange (科技報橘), in partnership with National Taiwan University Department of Computer Science and Information Engineering, NTU Department of Information Management, and Legal AI startup Legalfruit (律果科技), with NVIDIA technical support. Dairen Chemical Chairman Lin Xiandong is a co-initiator of the project, contributing petrochemical industry expertise for model training.
• NVIDIAcoreTechnology or Integration · 1 July 2024NVIDIA provides technical support for the Project TAME traditional Chinese expert model training, enabling the development of Taiwan's sovereign AI through its developer program technology.
• National Taiwan University (台大資工系、台大資管系)coreStrategic or Co-development Partner · 1 July 2024NTU CSIE Associate Professor Chen Yun-Nuan leads the lab team and enterprise partner development team in jointly developing the Taiwan LLM model, pre-training with nearly 500 billion tokens from domain expert data.
• Hodogaya Chemical (日本保土谷)minorStrategic or Co-development Partner · 1 July 2024Dairen partnered with Japanese Hodogaya Chemical (保土谷) for technology cooperation in producing polytetrahydrofuran (PTG) using allyl alcohol as a raw material.
• The LYCRA Company (萊卡公司)flagshipStrategic or Co-development Partner · 8 May 2024Dairen Chemical signed a Letter of Intent with The LYCRA Company to convert QIRA® bio-based BDO into low-carbon, environmentally friendly PTMEG for producing bio-based LYCRA® fiber. Dairen became the world's first company to produce low-carbon bio-based PTMEG at scale. The bio-based LYCRA® fiber is expected to contain up to 70% renewable content and reduce carbon footprint by up to 44% compared to conventional LYCRA® fiber. The LYCRA Company awarded Dairen the Green Partner Award recognizing Dairen's sustainability efforts.
• Qore®flagshipStrategic or Co-development Partner · 1 September 2022Qore® partnered with The LYCRA Company in September 2022 to produce bio-based LYCRA® fiber from QIRA® (corn-based bio-BDO). Dairen Chemical joined this partnership to convert QIRA® into bio-based PTMEG. Qore® operates a state-of-the-art wind-powered BDO plant.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wacker Chemie AG: German specialty chemicals producer with leading global positions in VAM, VAE dispersions (VINNAPAS®), and polymer powders — directly competes with Dairen in VAE emulsions and redispersible powders, the same applications (adhesives, construction dry-mix, coatings).
• Celanese Corporation: US-based acetyls and engineered materials major; one of the world's largest VAM and EVA producers with acetyl chain integration — directly overlaps Dairen on VAM and downstream VAE/EVA chemistries with similar end markets.
• Formosa Plastics Corporation: Taiwanese petrochemical conglomerate and operator of the Mailiao complex where Dairen's Yunlin factory is co-located; competing regional commodity chemicals producer with overlapping VAM, vinyl, and downstream intermediates, headquartered in the same Taiwanese market.

Broad incumbents

• LyondellBasell Industries: Global polyolefins and intermediates major with VAM and acetyls exposure; broader and more diversified than Dairen but competes in the same vinyl intermediates space and serves overlapping adhesives/coatings customers.
• BASF SE: Global chemical giant with a petrochemical and intermediates segment producing VAM, BDO, and downstream polymer dispersions; broader portfolio but meaningful overlap with Dairen on VAM, BDO, and VAE-type dispersions for construction and adhesives.
• Sinopec (China Petroleum & Chemical Corporation): Largest Chinese petrochemical producer; explicitly cited by Dairen's chairman as the source of unprecedented capacity additions driving regional price pressure. Competes with Dairen across VAM, BDO, and downstream intermediates.
• Eastman Chemical Company: US specialty and intermediates producer with significant VAM, BDO-related, and downstream specialty chemical positions (including fibers and textiles inputs), competing in adjacent chemistries and end markets.
• Dow Inc. Diversified global chemicals producer with VAM, EVA copolymers, and various specialty additives — competes with Dairen on emulsion polymers, vinyl intermediates, and downstream construction/coatings inputs.
• Mitsubishi Chemical Group: Japanese diversified chemicals major with VAM-related intermediates, specialty polymers, and downstream applications — close geographic peer (Asian) and overlapping product portfolio with Dairen's VAE and BDO/PTMEG-related chains.

Regional players

• Sipchem (Saudi International Petrochemical Company): Saudi petrochemicals producer with VAM, EVA, and downstream specialty chemicals serving primarily Middle Eastern and Asian markets; competes primarily in export rather than Taiwan-domestic channel, offering a reference point for cost-positioned VAM producers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dairen-chemical-corporation

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries6 records

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 Dairen Chemical Corporation