ASME · S Stamp
ASME Certificate of Authorization — S Stamp
Issued by: The American Society of Mechanical Engineers (ASME)
Scope: manufacture and assembly of power boilers under the ASME Boiler and Pressure Vessel Code.
Thermal Oil Heater Certificates & Global Manufacturing Qualifications
Engineered in Changzhou, China for over 45 years, every CEEF hot oil heater is built to strict international pressure codes—from ASME S & U stamps to ISO-certified quality management.
International Certifications & Global Compliance
ASME Certificates of Authorization, an ISO 9001 quality management system certificate, China Classification Society works approvals for marine thermal oil heaters, and bilingual pressure vessel licences — the documents overseas buyers, inspectors and EPC contractors most often ask for during supplier qualification.
ASME · U Stamp
ASME Certificate of Authorization — U Stamp
Issued by: The American Society of Mechanical Engineers (ASME)
Scope: manufacture of pressure vessels under the ASME Boiler and Pressure Vessel Code.
ISO 9001:2008
Quality Management System Certificate
Issued by: China Certification Center, Inc. (CCCI) — IAF and UKAS marks shown
Scope: design and manufacture of heat transfer material heaters; manufacture and after-sales service of Class I and Class II pressure vessels.
CCS · Marine
Certificate of Works Approval — Thermal Oil Heater
Issued by: China Classification Society (CCS), Jiangsu Branch
Approval standard: CCS Rules for the Classification of Sea-going Steel Ships, Part Three, Chapters 4 & 6.
CCS · Marine
Certificate of Works Approval — Thermal Oil Boiler
Issued by: China Classification Society (CCS), Shanghai Branch
Approval standard: CCS Rules for the Classification of Sea-going Steel Ships, Part Three, Chapters 4 & 6.
PRC · Design License
Design License of Special Equipment — Pressure Vessels
Issued by: Jiangsu Province, China — Provincial Bureau of Quality and Technical Supervision
Grades D1 (Class I pressure vessels) and D2 (Class II low- and medium-pressure vessels). Bilingual Chinese / English licence.
PRC · Design License
Design License of Special Equipment — Pressure Vessels (Earlier Edition)
Issued by: Jiangsu Province, China — Provincial Bureau of Quality and Technical Supervision
Grades D1 and D2 pressure vessel design. Earlier edition of the licence shown above, kept for reference.
PRC · Manufacture License
Manufacture License of Special Equipment — Pressure Vessels
Issued by: Jiangsu Province, China — Provincial Bureau of Quality and Technical Supervision
Grades D1 (Class I pressure vessels) and D2 (Class II low- and medium-pressure vessels). Bilingual Chinese / English licence.
China National & Provincial Qualifications & Honors
In China, makers of pressure equipment must hold government-issued licences, and the most respected recognitions are conferred by national ministries, provincial governments and industry associations. For overseas buyers, these credentials are official, locally verifiable evidence of a factory's compliance, technology level and corporate credibility.
The records below — national High-tech Enterprise status, a national boiler science and technology prize, the MIIT Energy Efficiency Star listing, and Jiangsu provincial recognitions for innovation, brand quality and contract-keeping credit — reflect CEEF's standing in its home market. The special equipment design and manufacture licences for pressure vessels appear in the international section above.
National
High-tech Enterprise Certificate
Issued by: People's Republic of China — national High-tech Enterprise recognition
Awarded to Changzhou Energy Engineering Co., Ltd. as a recognised high-tech enterprise; valid for a three-year term.
National
National Boiler Science & Technology Award — Third Prize
Issued by: National boiler industry science and technology award programme
Project: key technology and industrialisation of complete sets of high-efficiency, low-NOx, safe organic heat carrier boilers.
National
Energy Efficiency Star Product Honor Certificate
Issued by: Ministry of Industry and Information Technology (MIIT), China
CEEF YLL-39000MA boiler listed in the national "Energy Efficiency Star" product catalogue.
Industry Honor
Industrial Boiler Industry Leading Brand
Issued by: Industry association honor certificate, China
Honor title "Industry Leading Brand" in China's industrial boiler industry.
Industry Honor
Most Influential Brand — China Industrial Boiler Industry
Issued by: China Electrical Industry Association, Industrial Boiler Branch
The CEEF brand rated the most influential brand in China's industrial boiler industry.
Provincial
Jiangsu Science & Technology Award — Third Prize
Issued by: Jiangsu Provincial People's Government, China
Project: key technology and industrialisation of energy-saving, low-carbon, environmentally friendly and safe complete equipment for organic heat carrier heating furnaces.
Provincial
Specialized & Innovative SME Certificate
Issued by: Jiangsu Provincial Department of Industry and Information Technology, China
Recognised as a provincial "Specialized, Refined, Distinctive and Innovative" small and medium-sized enterprise.
Provincial
AAA-Grade Contract-Honouring & Promise-Keeping Enterprise
Issued by: The People's Government of Jiangsu Province, China
Provincial plaque: "An Enterprise of Honouring Contracts and Keeping Promise of Grade 3A".
Provincial
Jiangsu Famous Brand Product Certificate
Issued by: Jiangsu Promotion Commission for Famous Brand Strategy
Awarded to the CEEF logo mark and Xianfeng-brand organic heat carrier heaters.
Provincial
Jiangsu Famous Trademark Certificate
Issued by: Jiangsu Provincial Administration for Industry and Commerce
Registered trademark recognised as a Jiangsu famous trademark; valid for a three-year term.
Provincial
Jiangsu Premium Brand Certification
Issued by: Jiangsu Premium Brand International Certification Alliance (TÜV Rheinland mark shown)
Product: gas-fired organic heat carrier heaters, models YQL and YQW; assessed against DB 32/T 3843 and GB/T 17410.
ISO 9001:2015
Quality Management System Certificate
Issued by: CCCI — IAF and UKAS marks shown
Scope: design and manufacture of organic heat carrier heaters; manufacture of Class I and Class II low- and medium-pressure vessels; after-sales service.
Supplier Qualification & Tenders
Need Official Copies of Our Certificates?
If your supplier qualification review or tender submission requires official copies of our certifications, contact our team directly — we will respond with the documents you need.