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Company News

Company news and practical notes on specifying pressure vessels, tanks and steel structures.

Wanlong named a 2026 Jiangxi Private Enterprise Social Responsibility Leader

Jiangxi Wanlong Industrial Co., Ltd. has been named one of the 2026 Jiangxi Private Enterprise Social Responsibility Leaders. The list was announced on 11 November 2026 at the press conference for the 2026 Jiangxi Top 100 Private Enterprises and Social Responsibility Report, according to Jiangxi Release and the Jiangxi Federation of Industry and Commerce. About the list The Social Responsibility Leaders list names 100 private companies from across Jiangxi Province. Wanlong is listed under Nanchang. The same press conference announced the 2026 Jiangxi Top 100 Private Enterprises, the Top 100 private manufacturers and the Top 20 private service companies, together with 15 outstanding social responsibility cases. Where it fits in our public record For buyers checking a supplier, the listing sits alongside the records already published on this site: Special equipment production licences for Class D fixed pressure vessels (TS2236612-2027) and GC2 industrial piping (TS3836019-2027) ISO 9001, ISO 14001 and ISO 45001 certificates, valid to 2028-06-17 AAA credit rating for public tendering and the EPEC A+ supplier credit rating Our working principle stays the same: service creates value, and quality comes from details. To see the licences and certificates, visit About Us; to discuss a project, contact our team. Source: announcement of the 2026 Jiangxi Top 100 Private Enterprises lists, Dajiang News, 11 November 2026 (in Chinese).

AAA credit rating for public tendering, valid to April 2029

Jiangxi Wanlong Industrial Co., Ltd. has been rated AAA for credit standing in the public tendering field. Certificate GJ2026XY2901013 is valid from April 2026 to April 2029. What the rating covers The rating is issued for use in public tendering and bidding. It assesses the company's credit standing. It does not certify any product, and it does not replace the licences that apply to pressure equipment, piping or construction work. Our credit records AAA credit rating, public tendering: certificate GJ2026XY2901013, April 2026 to April 2029. A+ supplier credit rating, Sinopec EPEC procurement platform: certificate 20240102063, three years from July 2024. Licences buyers ask for For an equipment order, a tender committee or an EPC procurement team will also check that the fabricator is licensed for the work. These are our current licences and certificates: Special equipment production licence TS2236612-2027: fixed pressure vessels, Class D (medium and low pressure), valid to 2027-08-27. Vessel design is outsourced. Special equipment production licence TS3836019-2027: GC2 industrial piping installation, valid to 2027-04-14. Construction qualification D236A02207: petrochemical engineering, building construction and mechanical and electrical general contracting, Grade 2, valid to 2030-02-14. ISO 9001, ISO 14001 and ISO 45001 certificates, valid to 2028-06-17. Explosion-proof equipment installation, maintenance and repair qualification PCEC-2024-BC004, valid to May 2027. UL 1746 certificate 20161115-MH61687, jacketed underground tanks for flammable liquids, issued 2016. What we supply From one 133,000 m² site in Jinxian, Nanchang, we fabricate pressure vessels, storage tanks, SF double-wall underground fuel tanks, steel structures and skid-mounted units. The plant has a 30,000 m² vessel workshop and an annual capacity of 50,000 t, with 180 staff, 45 of them engineers and technicians. For tenders that combine several packages, one bid can cover vessels, tanks and steel from the same plant. Each order ships with its data book: certificate of conformity, quality certificate, as-built drawings, mill test reports, WPS/PQR records, NDT reports, test reports and packing list. Our references include SF double-wall tanks supplied under framework agreements to a national fuel retailer, tank installation for a top chemical group's ethylene complex in Yantai, and leachate and wastewater tanks on eight projects for an environmental EPC contractor. Copies of the rating certificate and our licences can be sent with tender documents.

ISO 9001, ISO 14001 and ISO 45001 certificates renewed to 2028

Jiangxi Wanlong Industrial Co., Ltd. has renewed its three management system certificates. ISO 9001 for quality management, ISO 14001 for environmental management and ISO 45001 for occupational health and safety are now valid from 18 June 2025 to 17 June 2028. Registration numbers ISO 9001 (quality management): 01725Q10433R2M ISO 14001 (environmental management): 01725E20277R2M ISO 45001 (occupational health and safety): 01725S10249R2M All three certificates run from 2025-06-18 to 2028-06-17. What the certificates cover The ISO 9001 scope lists the work buyers most often send us: Fabrication of steel structures and space frames Manufacture of Class D (medium- and low-pressure) fixed pressure vessels Production of SF double-wall underground fuel tanks Production of skid-mounted units Installation of GC2 industrial piping Construction work under our Grade 2 qualifications for building construction, building decoration and mechanical and electrical work The ISO 14001 and ISO 45001 scopes cover the same activities and add petrochemical engineering construction and foundation work, both at Grade 2. How to use the scope when you evaluate us A certificate number on its own does not show whether the system applies to your order. Check that the product on your purchase order appears in the scope. Then check that it is also covered by the matching licence: Pressure vessels: special equipment production licence TS2236612-2027, fixed pressure vessels, Class D, valid to 2027-08-27. The licence notes that vessel design is outsourced. GC2 industrial piping: licence TS3836019-2027, valid to 2027-04-14. Construction: qualification D236A02207 for petrochemical engineering, building construction and mechanical and electrical general contracting, Grade 2, valid to 2030-02-14. What stays the same on your order The renewal does not change how equipment is built. Plate is checked against mill test reports before cutting. Welding follows qualified WPS/PQR. Welds are inspected by RT, UT, MT and PT, with radiography in our own RT room. Pressure vessels are hydrostatically tested at 1.25 × design pressure with a 30-minute hold. Each shipment leaves with its data book. The certificates apply to our single site at No. 2666 Jinxian Avenue, Jinxian Economic Development Zone, Nanchang, Jiangxi. The site covers 133,000 m², with a 30,000 m² vessel workshop, an annual capacity of 50,000 t and 180 staff, 45 of them engineers and technicians. Copies of the three certificates can be sent with any quotation.

A+ supplier credit rating on the Sinopec EPEC procurement platform

Jiangxi Wanlong Industrial Co., Ltd. has been rated A+ in the legal-entity credit evaluation of the Sinopec EPEC procurement platform. The certificate number is 20240102063. It is valid for three years from July 2024. What the rating is EPEC is the Sinopec procurement platform. Its legal-entity credit evaluation rates a supplier's credit standing as a company. It is a credit rating, not a product approval: it does not replace the licences and test records that apply to each piece of equipment. The certificate can be checked on the EPEC platform by its number. Why it matters to buyers Before inviting a fabricator to quote, procurement teams on energy and petrochemical projects usually check two things: whether the company is sound, and whether it is licensed for the equipment. The A+ rating speaks to the first question. Our licences answer the second. Licences and certificates held in July 2024 Pressure vessels: special equipment production licence TS2236612-2027, fixed pressure vessels, Class D (medium and low pressure), valid from 2023-08-28 to 2027-08-27. Pressure piping: special equipment production licence TS3836019-2027 for GC2 industrial piping installation, valid from 2023-04-15 to 2027-04-14. SF double-wall tanks: UL 1746 certificate 20161115-MH61687, jacketed underground tanks for flammable liquids, issued 2016. Explosion-proof equipment: installation, maintenance and repair qualification PCEC-2024-BC004 for Ex vapour-recovery units and instruments, issued May 2024. The plant behind the rating Wanlong was established in 2003 in Jinxian, Nanchang, Jiangxi. The site covers 133,000 m², with a 30,000 m² vessel workshop and an annual capacity of 50,000 t. Of 180 staff, 45 are engineers and technicians. From this one site we fabricate pressure vessels, storage tanks, SF double-wall underground fuel tanks, steel structures and skid-mounted units. Plate is cut on CNC laser, flame and plasma machines, rolled on 3- and 4-roll benders up to 70 mm, and welded by SAW and GMAW to qualified WPS/PQR. Welds are inspected by RT, UT, MT and PT, with radiography in our own RT room. Our energy and petrochemical references include SF double-wall tanks supplied under framework agreements to a national fuel retailer, and tank installation for a top chemical group's ethylene complex in Yantai. A copy of the EPEC certificate can be sent with any quotation.

Qualification for installing and servicing explosion-proof equipment

Jiangxi Wanlong Industrial Co., Ltd. has received a qualification for the installation, maintenance and repair of explosion-proof equipment. Certificate PCEC-2024-BC004 covers two equipment categories: explosion-proof vapour-recovery units and explosion-proof instruments. It is valid from May 2024 to May 2027. Why this qualification matters Fuel stations and refuelling skids work in hazardous areas, where fuel vapour can form an explosive atmosphere. Electrical equipment in these areas must be explosion-protected, and it must be installed and serviced correctly to keep that protection. Our skid-mounted refuelling units carry this kind of equipment. The JY-10, JY-20 and JY-30 units for petrol and diesel use dispensers rated Ex d IIA T4. The JYQ-20 unit for CNG and LNG is rated Ex d IIB T3. The configuration includes: SF double-wall tank Vapour recovery unit Explosion-proof dispenser Submersible pump Level gauge Emergency shut-off valve Fire-fighting equipment Intelligent control system What the certificate covers, and what it does not Covered: installation, maintenance and repair of explosion-proof vapour-recovery units and explosion-proof instruments. Not covered: other categories of explosion-proof equipment. The certificate is a service qualification, not a product certificate for any device. When you specify a refuelling skid, state the hazardous-area classification and the explosion-protection marking your authority requires. They can then be checked against the equipment list before fabrication. In these markings, Ex d means a flameproof enclosure, IIA and IIB are gas groups, and T4 and T3 are temperature classes. The marking must suit the gases present and the area classification at the site. How it fits with our other work The same equipment sits on SF double-wall underground tanks at fuel stations, which we also fabricate. Our SF range runs from SF-10 to SF-50, 10 to 50 m³, with a 6 mm Q235B inner tank and a 6 mm FRP outer tank, manufactured to SH/T 3178. Our UL 1746 certificate is 20161115-MH61687, for jacketed underground tanks for flammable liquids, issued 2016. Skid piping falls under our special equipment production licence TS3836019-2027 for GC2 industrial piping installation, valid to 2027-04-14. Skid frames are welded to qualified WPS/PQR, blasted to Sa 2.5 and coated with epoxy zinc-rich primer and polyurethane topcoat.

Framework supply of SF double-wall tanks for station networks in Hunan and Henan

Jiangxi Wanlong Industrial Co., Ltd. supplies SF double-wall underground fuel tanks under framework purchase agreements with a national fuel retailer's provincial branches in Hunan and Henan. The tanks go to the retailer's fuel stations in the two provinces. Scope of supply Fabrication of SF double-wall tanks at our plant in Jinxian, Nanchang, Jiangxi Manufacture to SH/T 3178, with a Q235B steel inner tank, an FRP outer tank and an interstitial space for leak detection Inspection and documents for each tank Delivery by road to station sites Site installation support on station projects where it is part of the order The tanks The SF range covers five standard sizes: SF-10: 10 m³, inside diameter 2,400 mm, overall length 3,600 mm SF-20: 20 m³, inside diameter 2,400 mm, overall length 6,000 mm SF-30: 30 m³, inside diameter 2,600 mm, overall length 7,200 mm SF-40: 40 m³, inside diameter 2,800 mm, overall length 8,500 mm SF-50: 50 m³, inside diameter 2,800 mm, overall length 9,800 mm The interstitial space between the two walls is monitored at the station, so a breach in either wall is detected while the other wall still contains the fuel. All sizes use a 6 mm Q235B inner tank and a 6 mm FRP outer tank. Our UL 1746 certificate is 20161115-MH61687, for jacketed underground tanks for flammable liquids, issued 2016. How the tanks are built Q235B plate checked against mill test reports, then CNC cut and rolled Inner-tank seams welded by submerged-arc welding to qualified WPS/PQR Weld NDT and air-tightness testing of the steel inner tank FRP outer tank built up on our FRP spray lines Finished tanks loaded with overhead cranes up to 50 t Each tank shipped with its certificate of conformity, quality certificate, MTRs, NDT and test reports, and packing list A wider supply record The same retailer's branches in Jiangxi, Hubei, Guangdong, Zhejiang, Fujian and Guangxi are also on our SF tank reference list. On some station projects we supply the canopy steel as well as the tanks, so the structure above ground and the tanks below it come from one plant. Station operators and EPC contractors outside China can order from the same SF-10 to SF-50 range. Send the station layout and the standard your authority requires.

Send us the data sheet.

Tell us the medium, design pressure, temperature and quantity. An engineer replies with questions or a quotation.

Sales contact
Mr. Yu Jiakang
WhatsApp / WeChat
+86 183 1791 9067
Factory
No. 2666 Jinxian Avenue, High-tech Industrial Park, Jinxian Economic Development Zone, Nanchang, Jiangxi, China 331700

Request a quoteWhatsApp +86 183 1791 9067jiakang@wanlongindustrial.com
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