WELLE Environmental Group

What WELLE Environmental Group does

WELLE Environmental Group (维尔利环保科技集团股份有限公司, Shenzhen: 300190) is a Chinese publicly listed environmental technology group founded in 2003 and headquartered in Changzhou, Jiangsu. The company operates across three core business clusters — Urban Environmental Solutions (municipal solid waste, food waste, landfill leachate, sludge), Industrial Environmental Protection (wastewater zero-discharge, distillery wastewater, VOC cold condensation recovery via subsidiary Nanjing Dule Refrigeration), and Energy Services (anaerobic digestion, biogas upgrading to biomethane, biofuel, energy management, data center liquid cooling) — plus an incubator segment covering insect protein bioconversion, anammox de-nitrogenation, and metal recycling. Core technologies include proprietary medium-to-high temperature transition zone anaerobic fermentation (US patent granted, basis for a Chinese agricultural industry standard), CJMBR aerobic circulation jet membrane bioreactor, -70°C evaporative condensation VOC recovery, Anammox for high-ammonia leachate, and a carbon-nitrogen closed-loop resource recovery system linking biogas, insect protein, and organic fertilizer outputs.

The company earns revenue through large-scale EPC contracts (tens of millions to billions of RMB per project, won via competitive tendering with governments and state-owned enterprises), long-tenor BOT/PPP operating concessions (10-30 years, billed monthly per ton/per unit processed), proprietary equipment sales (CJMBR, BMCVR VOC units, anaerobic digesters), and emerging product streams including biomethane, organic fertilizer, insect protein, and data center cooling. GTM is dominated by direct enterprise/government field sales with strategic account management for marquee SOE clients (Sinopec, CNOOC, China Ship Fuel, Kweichow Moutai, Zhejiang Petrochemical), supplemented by subsidiary channel networks, the 70%-owned EuRec Germany subsidiary, and partnerships with UES Singapore and Juncapital for Southeast Asia expansion.

Recent strategic positioning has pivoted WELLE from a project-based environmental engineering firm toward an integrated waste-to-bioenergy and green fuel supplier, evidenced by framework agreements with China Ship Fuel for maritime green fuels, CNOOC for biomethane green certificate trading, Sinopec Carbon and Blue Whale Bioenergy for SAF feedstock, and a $4M strategic investment plus Singapore JV with Primech Holdings for industrial robotics. The group has 60+ subsidiaries, over 2,000 employees, and an order book that includes the 6.1 billion RMB Shenyang Laohu Chong leachate project and the 1.496 billion RMB Baotou Yonghe water treatment project, alongside 450+ patents and 16 national/industry standards.

Name

WELLE Environmental Group

Legal name

维尔利环保科技集团股份有限公司

Website

https://wellegroup.com

Company type

Public

Founded year

2003

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

WELLE Environmental Group is a Chinese publicly listed environmental technology company specializing in organic waste resource recovery, anaerobic digestion, landfill leachate treatment, and bioenergy, serving municipal governments, industrial SOEs, and agricultural clients across China and Belt and Road markets.

Ownership category

akta.pro rank

Product category

Environmental Engineering and Bioenergy Services

NAICS

Waste Treatment and Disposal (5622), Remediation and Other Waste Management Services (5629), Sewage Treatment Facilities (221320)

SIC

Refuse Systems (4953), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Organics Facility Development & Operations Services (Design/Build, O&M, Permitting) (EUAIAEAJ)

akta.pro secondary industries

Industrial Waste-to-Energy (Non-Hazardous Process Wastes) (EUACAIAI), Organics Collection & Processing (Composting/Anaerobic Digestion) (IMAIAFAF), Organics & Composting Programs (Food Waste, Green Waste) (BPABALAC), Organics Transfer & Pre-Processing (Food/Yard Waste) (EUAIABAD)

Keywords

• Environmental engineering services
• Organic waste resource recovery
• Anaerobic digestion systems
• Biogas and biomethane production
• Industrial wastewater treatment

Headquarters

HQ city

Liyang

HQ country

China

HQ region

Asia

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering, Procurement, Construction (EPC) Contracts: WELLE derives primary revenue from large-scale EPC contracts for waste treatment facilities, leachate processing plants, biogas systems, and industrial wastewater projects. These are project-based, one-time revenue events with long sales cycles (12-36 months), typically ranging from tens to hundreds of millions of RMB per contract. The company competes for government and SOE projects through tender processes.
2. Build-Operate-Transfer (BOT) and Operating Services: WELLE operates facilities under long-term BOT concessions (typically 10-30 years) and provides professional operating services for wastewater/leachate treatment plants. This provides recurring operating revenue with stable cash flows. The company holds multiple operating contracts including the 6.1 billion RMB Shenyang老虎冲 project (10-year), Beijing Chaoyang 3-year contract, and Kunming Wuhua power plant.
3. Equipment Manufacturing and Supply: Sale of proprietary equipment including VOC recovery units (Nanjing Dule), CJMBR membrane systems, anaerobic digesters, biogas upgrading skids, and insect farming systems. Revenue recognized upon delivery, often as part of larger EPC packages or as standalone equipment sales.
4. Biomass Energy Products (Biogas/Biomethane): WELLE generates revenue from biomethane production and sales through its subsidiary 维尔利生物能源. Projects produce biomethane sold into city gas grids or as compressed gas/liquid biomethane. The company signed China's first cross-regional biomethane green certificate trading agreement with CNOOC Energy.
5. Organic Fertilizer and Insect Protein Products: By-products from anaerobic digestion (biogas residue) and insect conversion (black soldier fly larvae, insect meal) are sold as organic fertilizers and protein feed ingredients respectively. Insect protein targets pet food and aquaculture feed markets; organic fertilizers serve agricultural customers.
6. Data Center Liquid Cooling: Through subsidiary Jiangsu Weineng Zhileng, WELLE supplies liquid cooling systems for data centers. Revenue is equipment + engineering services for emerging data center energy efficiency market.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels6 records

Core offering

WELLE Environmental Group designs, builds, and operates organic waste resource recovery facilities for municipal, industrial, and agricultural clients. Through proprietary anaerobic digestion, biogas upgrading, insect protein bioconversion, and wastewater treatment technologies, the company converts organic waste into biomethane, organic fertilizer, and high-value protein products under EPC, BOT, and PPP contract structures.

Product overview

WELLE Environmental Group (维尔利科技集团股份有限公司, Stock Code: 300190.SZ) is a multi-segment environmental technology and bio-energy group headquartered in Changzhou, China, founded in 2003 and listed on the Shenzhen Stock Exchange in 2011. The group operates as a unified platform organized around three core business clusters: (1) Urban Environmental Solutions — covering municipal organic waste/food waste treatment, landfill leachate treatment, landfill remediation, and sludge treatment and resource recovery; (2) Industrial Environmental Protection — covering industrial wastewater zero-discharge, distillery/beverage wastewater, VOC cold condensation recovery (via subsidiary Nanjing Dule Refrigeration), and coking wastewater; and (3) Energy Services — covering anaerobic digestion and biogas upgrading to bio-natural gas, bio-fuel oil, alternative fuel and energy management, new energy and energy storage, and data center liquid cooling. In addition, WELLE has incubation platforms in insect protein bioconversion (via subsidiary 常州维尔利农业科技) and anammox de-nitrogenation technology. The group has also entered the industrial robotics space through a JV with Singapore's Primech Holdings and the $4M strategic investment in Primech's Hytron autonomous cleaning robot. The portfolio spans both proprietary technology solutions (e.g., CJMBR, high-efficiency anaerobic digestion, UE digital twin platform) and partner-co-developed offerings (Infor LN ERP for internal operations, AI energy management for clients).

Differentiator

Problem solved

Functional benefit

Brands

• 维尔利生物能源: Subsidiary focused on bio-natural gas project investment, construction and operation
• 维尔利（常州）生物能源有限公司
• 维尔利学院/维尔利学苑

Products and services

• Bio-Natural Gas Solutions Biogas upgrading and bio-natural gas production solutions including wet desulfurization + dry desulfurization + membrane purification processes, producing Class 1 bio-NG for grid injection. The Shanghai Baoshan project produces approximately 8 million m3/year of bio-NG.
• Nanjing Dule BMCVR Series Oil-Gas Recovery Unit Flagship VOC recovery product featuring -70°C evaporation and condensation technology, two-stage condensation, and adsorption systems. BMCVR1300 unit features 1,250 m3/h design airflow with recovery rate no less than 97%.
• Insect Protein Bioconversion Technology Full-process technology chain from breeding, egg hatching, insect conversion, and frass separation to deep product processing, producing insect protein meal for premium pet food and aquatic feed, and organic fertilizer from frass. Achieves approximately 200 kg fresh black soldier fly larvae per ton of distillery waste.
• Waste Leachate Treatment Solutions Flagship service area with over 300 projects. Technologies include CJMBR aerobic circulation jet membrane bioreactor, multi-stage membrane separation for concentrate, and full-quantity leachate treatment. Xi'an Jiangcungou project applies anammox technology achieving over 85% total nitrogen removal.
• Urban Environment Solutions - Food Waste and Municipal Organic Waste Comprehensive treatment solutions for municipal organic waste including food waste, kitchen waste, and horticultural waste. Processes organic waste into biogas, insect protein feed, and organic fertilizer through combined energy-feed-fertilizer resource recovery technology.
• Industrial Wastewater Zero Discharge Solutions Full zero-discharge treatment solutions for industrial wastewater including pretreatment, ultrafiltration, reverse osmosis, MVR/MED evaporation crystallization, and intelligent water affairs management systems covering petrochemical, coal chemical, fluoro-chemical, electronic, and food industries.
• Data Center Liquid Cooling Solution Liquid cooling systems for data centers developed by Jiangsu Weineng Zhileng, covering dry cooler and cooling tower equipment supply, system design, installation, and commissioning for digital economy and green data center sustainability.
• Industrial AI Energy Management System AI-powered smart energy management systems for high-end manufacturing clients, developed by Welle (Suzhou) Energy Technology. Uses AI algorithms for real-time energy consumption analysis, demand prediction, automatic parameter regulation, and predictive maintenance.
• Digital Twin 3D Visualization Platform UE Engine-powered 3D digital twin platform for environmental plant visualization. Creates 1:1 high-precision 3D models with IoT data integration for real-time plant monitoring, equipment management, process optimization, and predictive maintenance.
• Hytron Autonomous Restroom Cleaning Robot Autonomous AI-powered restroom cleaning robot developed through the Primech Holdings partnership. Features NVIDIA Jetson Orin Super computing, 99%+ bacterial reduction, and 15.7-inch compact design enabling fixture-level cleaning of toilets, urinals, and sinks.

Quantifiable outcome

• Reduces CO₂ emissions by ~24,000 tons per year (Shanghai Baoshan biomethane project)
• +7 more outcomes

Named customers22 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability10 records

Feature8 records

Partnerships

21 partnerships are on record, tiered core, major and minor.

• China National Shipping Fuel Co., Ltd. (中国船燃)coreStrategic or Co-development Partner · 16 April 2026Framework cooperation agreement signed April 2026 for maritime green fuel supply chain. WELLE will supply biomethane, liquefied biomethane, green methanol, and biofuel products to China Ship Fuel's global supply network covering 170+ ports. The partnership targets shipping industry decarbonization under the EU Emissions Trading System and FuelEU Maritime regulations. Both parties will also explore chemical logistics cooperation.
• Dalian University of Technology (大连理工大学)coreStrategic or Co-development Partner · 25 March 2026Long-standing R&D partnership. Jointly undertaking '14th Five-Year' National Key R&D Program 'Agricultural Waste Anaerobic Fermentation Biogas Multi-Product Technology R&D and Regional Demonstration.' Their jointly developed 'Dual-Pathway Enhanced Anaerobic Biological Treatment' project won the 2025 Ministry of Education First Prize. Professor Zhang Yaobin's team visited WELLE in March 2026 to deepen collaboration on厌氧 biological treatment technology and future bioenergy industry development.
• Juncapital Holdings Pte. Ltd. (Singapore)majorStrategic or Co-development Partner · 12 March 2026Joint investment and cooperation in Singapore's BioEnergy Lim Chu Kang (BE) project at Seng Choon Farm — WELLE's first overseas biomethane/biomass energy investment. WELLE will deploy its proprietary high-ammonia anaerobic fermentation technology. Project processes 70 tons/day chicken manure + 200 tons/day organic waste, generating ~15 million kWh/year electricity. Qualifies for green electricity certificates and carbon credits.
• Chinese Academy of Sciences Guangzhou Institute of Energy Conversion (广州能源所)coreStrategic or Co-development Partner · 9 March 2026Strategic cooperation discussion held March 2026. Both parties agreed to collaborate on biomethane quality upgrading (green LNG, green methanol pathways), sustainable aviation fuel (SAF), and biomass hydrogen production. WELLE brings engineering and operational capabilities; Guangzhou Energy Institute brings advanced R&D. Both agreed to establish a normalized对接 mechanism and sign strategic agreements for joint technology development.
• Eeton Technology (艾特网能)minorStrategic or Co-development Partner · 5 March 2026Cooperation for data center green cooling/liquid cooling systems. Jiangsu Weineng Zhileng (WELLE subsidiary) provides liquid cooling system design, installation, and cooling tower/dry cooler supply; Eeton provides market channels and integration capabilities. First prototype contract signed for data center liquid cooling.
• Primech Holdings Ltd.coreStrategic or Co-development Partner · 8 January 2026WELLE Environmental Group invested $4 million in Primech Holdings (Nasdaq: PMEC) to accelerate autonomous robotics development. The investment deepens a strategic cooperation that includes a joint venture in Singapore for developing specialized industrial robots for high-risk and complex industrial environments. WELLE has an option to further invest in Primech AI until September 2026. The partnership combines WELLE's environmental technology footprint with Primech's autonomous robotics platform for intelligent automation in industrial and commercial markets.
• CNOOC Energy (中油合能/中石油西南油气田)coreStrategic or Co-development Partner · 22 December 2025Signed China's first cross-regional biomethane green certificate trading agreement. WELLE Bioenergy will supply approximately 11 million m³ of biomethane green certificates to CNOOC Energy. The agreement creates a model for biomethane green attribute trading and cross-regional green energy consumption application in China.
• Primech Holdings Ltd. (JV in Singapore)coreStrategic or Co-development Partner · 12 December 2025Strategic Cooperation Framework Agreement signed December 2025 to establish a joint venture in Singapore focused on developing specialized industrial robots for high-risk and complex industrial environments. The JV combines WELLE's environmental governance and bioenergy expertise with Primech AI's robotics capabilities. WELLE holds an option to invest in Primech AI until September 2026. The partnership aims to deploy robotics and intelligent O&M solutions across both companies' client networks.
• Primech AI Pte. Ltd. (Robotics JV Option)coreStrategic or Co-development Partner · 12 December 2025WELLE has an option to invest in Primech AI, Primech Holdings' robotics subsidiary, until September 2026. This is part of the broader strategic cooperation that includes a Singapore JV for industrial robotics development.
• Blue Whale Bioenergy (蓝鲸生物能源)majorStrategic or Co-development Partner · 21 November 2025Framework cooperation signed November 2025 for SAF (Sustainable Aviation Fuel) supply chain digitalization. WELLE provides UCO (Used Cooking Oil) feedstock from its food waste operations with full traceability via digital technology. Blue Whale Bio (50,000 tons/year SAF capacity) receives 10,000+ tons of UCO by 2025 end under the agreement.
• Sinopec Carbon Technology Co., Ltd. (中石化碳科公司)coreStrategic or Co-development Partner · 29 October 2025Framework agreement for waste cooking oil cooperation. WELLE supplies UCO feedstock to Sinopec Carbon for SAF/biomass fuel production. Chairman Li Yuezhong and Sinopec Carbon GM Chen Wengang witnessed the signing.
• China Gas Group (中燃集团)coreStrategic or Co-development Partner · 26 September 2025Cooperation framework signed September 2025 at China-ASEAN Building Technology Exhibition. WELLE and China Gas Group will collaborate in biomethane, industrial energy saving, rooftop PV, energy storage, and carbon asset management. WELLE's 'wet desulfurization + pressure swing adsorption' technology achieves >95% methane recovery and 99.9% H₂S removal. The partnership aims to replicate green energy demonstration projects nationally.
• UES Holdings Pte. Ltd. (Singapore)coreStrategic or Co-development Partner · 4 September 2025Cooperation framework agreement signed in Singapore September 2025. UES (century-old Singaporean environmental company) brings Southeast Asia market resources, project development and EPC capabilities. WELLE contributes core technology and equipment R&D/manufacturing. Both parties will jointly develop Southeast Asia municipal waste, food waste, landfill leachate, and anaerobic biogas projects. UES covers market development and EPC; WELLE provides technology, process packages, and equipment.
• Kweichow Moutai Group - Moutai Recycling Investment Co. (茅台循环产投)coreStrategic or Co-development Partner · 27 August 2025Pilot cooperation for black soldier fly bioconversion of Moutai distiller's grain.常州维尔利农科 provides technology and equipment; Moutai Recycling provides feedstock. Pilot processes 5 tons/day distiller's grain, producing 0.9 tons/day fresh insects and 2 tons/day organic fertilizer substrate. Phase 2 aims to develop insect protein pet food products.
• Shanghai Baotan Carbon (上海宝碳)minorStrategic or Co-development Partner · 18 July 2023'Carbon Neutrality' strategic cooperation framework. WELLE will develop carbon减排 projects into CCER market through Shanghai Baotan Carbon's development services, generating carbon asset value from WELLE's existing biogas and biomethane projects.
• Sinochem Environment (中工环境)majorStrategic or Co-development Partner · 24 June 2021Strategic cooperation framework signed June 2021. Focus on Xichang food waste project and expansion into domestic and Belt and Road waste treatment projects including food waste, landfill leachate, biogas, VOC recovery. Both parties agreed to project, technology, and capital cooperation.
• Nanjing Agricultural University (南京农业大学)minorStrategic or Co-development Partner · 21 June 2021University-enterprise cooperation. WELLE and Nanjing Agricultural University signed employment and entrepreneurship internship base cooperation agreement. University provides talent pipeline and research collaboration; WELLE provides industry mentorship and career development opportunities.
• Infor (Enterprise Software)majorTechnology or Integration · 15 June 2021Digital transformation partnership. WELLE adopted Infor LN ERP system as the core of its information management system. Infor's industry-specific solution covers project lifecycle (market, sales, design, procurement), supply chain management, and financial integration. Project aimed at standardizing project management, reducing costs, and digitizing WELLE's operations.
• SDIC (国家开发投资集团) - GuochengmajorStrategic or Co-development Partner · 1 September 2020Joint investment with SDIC China Chengtao in 'Intelligent Construction Waste Processing and Resource Utilization Comprehensive Demonstration Base Project.' SDIC Guocheng is the state investor; WELLE provides technology and operational management.
• China Telecom (中国电信)minorStrategic or Co-development Partner · 20 July 20205G+ Industrial Internet strategic cooperation with Changzhou Telecom. Jointly building WELLE's 5G industrial internet platform for digital and intelligent environmental protection operations and equipment manufacturing.
• CCCC Shanghai Waterway Bureau (中交上海航道局)majorStrategic or Co-development Partner · 30 March 2020Memorandum of cooperation signed for food waste, landfill leachate treatment, and environmental protection in Yangtze River Delta and upper/middle reaches. CCCC brings construction and investment strength; WELLE provides technology and operational capabilities.

Scale indicators19 records

Recent moves9 records

Expansion highlights7 records

Broad incumbents

• China Everbright Environment: Largest state-backed waste-to-energy and environmental services group in China (HKEX: 0257), operating across municipal solid waste incineration, food waste, leachate, and biogas. Direct overlap with WELLE in waste-to-energy and anaerobic digestion projects, but at significantly larger scale and with broader geographic reach.
• Veolia China: China operations of global environmental services giant Veolia, covering hazardous waste, water, and municipal solid waste management. Comparable in operating municipal waste concessions and providing industrial wastewater and VOC solutions in China.
• Beijing Enterprises Water Group: Largest Chinese water and wastewater treatment operator (HKEX: 0371) with growing solid waste and hazardous waste businesses. Comparable in municipal environmental concession model and integrated water-waste project delivery.
• SIIC Environment Holdings: Shanghai Industrial Investment-backed environmental platform (SGX: BHK / HKEX: 0807) operating water and wastewater treatment, sludge, and waste-to-energy assets across China. Comparable in municipal environmental service model and Chinese SOE/government client base.
• Beijing Capital Land / Capital Environment: State-owned environmental services platform under Beijing Capital Group operating waste-to-energy, leachate, and sludge treatment projects across China. Direct competitor in municipal tenders and comparable in anaerobic digestion/biogas technology focus.

Direct peers

• Yunnan Water Investment: Chinese water and environmental services company (HKEX: 6839) covering wastewater treatment, solid waste, and municipal environmental projects. Comparable in municipal EPC + concession model and Southeast Asia/Belt and Road expansion.
• China Everbright Greentech: Hong Kong-listed (HKEX: 1257) renewable energy and environmental protection operator under China Everbright Group covering biomass power generation, waste-to-energy, and environmental remediation. Direct overlap with WELLE's biomass/biogas-to-energy projects.
• China Tianying (CNTY): Chinese environmental services and waste-to-energy operator (SZSE: 000035) covering MSW incineration, environmental equipment manufacturing, and renewable energy. Highly comparable business model spanning EPC, BOT, and equipment supply in the waste-to-energy value chain.
• Dynagreen Environmental Protection: Pure-play waste-to-energy operator (SHSE: 601330) focused on MSW incineration power generation in China. Comparable in project-based EPC + BOT model serving municipal clients, though more concentrated in incineration rather than AD/anaerobic digestion.
• Grandblue Environment: Diversified environmental services operator (SHSE: 600323) covering waste-to-energy, water treatment, and natural gas distribution in Guangdong. Comparable in operating BOT concessions and integrating municipal waste with energy recovery, though broader regional concentration.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jiangsu-welle-environmental-co.-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 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 WELLE Environmental Group