Thanh Hoa is a province with a leading economic and industrial scale in the North Central region, with its development core being... Nghi Son Economic Zone – one of the 8 key national coastal economic zones, along with other large industrial parks such as Le Mon, Bim Son, Lam Son – Sao Vang. At the same time, Thanh Hoa possesses over 102 km of coastline with bustling fishing ports. Sam Son (Lach Hoi), Tinh Gia (Lach Bang), Hau Loc (Lach Truong) and intensive clam and shrimp farming areas in Nga Son and Hoang Hoa districts. The demand for investment in industrial cold storage complexes to serve seafood processing for export and factory logistics in Thanh Hoa is currently booming.
Tan Long Refrigeration and Electrical Engineering Joint Stock Company We are a professional EPC general contractor providing solutions. Cold storage for seafood preservation, deep-freeze tunnels, and logistics cold storage in Nghi Son Economic Zone, Thanh Hoa.. Tan Long's refrigeration and electrical systems are committed to a lifespan of over 20 years, meeting the stringent standards for exporting seafood to the EU, Japan, and the United States.

1. Specialized Cooling Needs at Key Locations in Thanh Hoa Province
The cold chain in Thanh Hoa is segmented into distinct sub-segments requiring separate technological solutions:
- Nghi Son Economic Zone & Le Mon Industrial Park, Bim Son: The chilled (+2°C to +8°C) and frozen (-18°C to -22°C) food distribution warehouse system stores ingredients for industrial supply chains and kitchens serving tens of thousands of meals.
- Lach Bang fishing port (Nghi Son), Lach Hoi (Sam Son), Lach Sung (Nga Son): This is the gathering point for thousands of tons of squid, prawns, mackerel, and scad after each offshore fishing trip. If not immediately frozen at extremely low temperatures of -35°C to -40°C, the cellular fluid of the seafood will leak out, making the meat mushy and losing its natural sweetness.
- A chain of Thanh Hoa fermented pork sausage specialties and Lam Son agricultural products: The fermentation and preservation process of Thanh Hoa fermented pork sausage requires a cool, humidity-controlled room to regulate the microorganisms, maintain the crispness and flavor, and extend the shelf life without the need for chemical preservatives.
💡 The secret behind Tan Long's cold storage technology for seafood in Thanh Hoa:
Tan Long applies design Salt-resistant evaporator coil (Epoxy/Stainless Steel 304) Combined with an intelligent hot gas defrosting system, it saves energy for heating and defrosting and restores the cabin temperature three times faster than defrosting with electric resistance heaters.
2. Technical Specifications Table for Specialized Cold Storage Systems in Thanh Hoa
Summary of technical design standards for refrigeration systems applied by Tan Long engineers in Thanh Hoa:
| Application system | Design temperature | Relative humidity | Recommended insulation casing | Outstanding technical features |
|---|---|---|---|---|
| Lach Hoi and Lach Bang seafood blast freezers. | -35°C to -40°C | Forced air velocity 4–6 m/s | 150-200mm PIR panel, fire-resistant B1. | Lower the product core to -18°C in 4-6 hours. |
| Frozen seafood storage for export | -22°C to -25°C | 85% – 90% | 125-150mm PIR panel with Camlock mounting | Long-term storage of 12-24 months without loss. |
| Food cold storage in Nghi Son Economic Zone, Bim Son | +2°C to +6°C | 70% – 80% | PIR panel 75 – 100mm | Microclimate control, rapid pallet rotation |
| Fermentation and preservation room for Thanh Hoa fermented pork sausage. | +4°C to +8°C | 60% – 70% humidity control | 75mm PIR antibacterial panel | Stabilizes acidity and crispness, extending shelf life by 30 days. |
3. Tan Long's Industrial Standard Refrigeration and Electrical Equipment
All the components used in the project in Thanh Hoa were selected by Tan Long from leading global brands:
A. Dedicated Compressor and Evaporator Unit
- Compressor unit Mycom (Japan), Bitzer (Germany), Hanbell (Taiwan) Integrated inverter for energy saving.
- Industrial Air Cooler Guntner (Germany), Kueba or Eco with aluminum heat sinks coated with protective coating to prevent oxidation from the salty coastal waters of Nghi Son and Sam Son.
- The condenser is a shell-and-tube type, cooled by circulating water through a cooling tower or an evaporative condenser for large compression plants.
B. Fire-Resistant PIR Panel Enclosure & T-Light 304 Stainless Steel Cold Door
- Panel Polyisocyanurate core PIR With a density of 42-45 kg/m³, it meets fire resistance certification B1/B2 according to QCVN 06:2022/BXD, easily passing the fire safety assessment at Nghi Son Economic Zone.
- Insulated sliding door system brand T-Light Manufactured by Tan Long: Solid cast PIR core, brushed 304 stainless steel casing, equipped with an anti-freeze electric resistance heating mechanism and a sturdy extruded aluminum sliding rail system capable of withstanding the continuous opening and closing frequency of forklifts.

C. SCADA Remote Monitoring Control Cabinet
- Integrated programmable controller PLC Siemens S7-1200 / Schneider Electric.
- The HMI touchscreen visually displays the temperature of each chamber, suction pressure, discharge pressure, and compressor oil lubrication status.
- Cloud-based online monitoring software: Automatically sends alerts to management's phones when there are temperature discrepancies or power outages.
4. Estimated Cost Quotation for Cold Storage Construction in Thanh Hoa (B2B)
Cost estimate breakdown based on actual scale for investors in Thanh Hoa:
| Capacity | Warehouse volume | Main equipment and supplies | B2B pricing mechanism |
|---|---|---|---|
| Food storage capacity: 15-30 tons | 90 – 180 m³ | Bitzer/Copeland assembly, 100mm PIR panel, T-Light stainless steel hinged door. | Get a complete quote for a detailed cost breakdown after a 24-hour survey. |
| Seafood warehouse with a capacity of 50-200 tons. | 300 – 1,200 m³ | Screw compressor unit, Salt-resistant evaporator, 125mm PIR panel, Sliding door | Detailed technical cost estimate with Bill of Quantities (BOQ) |
| Nghi Son Economic Zone Complex: 500 – 5,000 Pallets | 3,000 – 30,000+ m³ | Central Mycom/Bitzer compression station, deep freezing tunnel, intelligent SCADA system. | Turnkey EPC contract, bank guarantee. |
👉 On-site technical support: Tan Long engineers are present in Nghi Son, Sam Son, Bim Son, Thanh Hoa City, Nga Son, and Hoang Hoa within the following timeframe: 24-48 hours.
5. Tan Long's Typical Project Portfolio
- NECS smart warehouse (102,642 pallets): The leading large-scale, automated multi-story cold storage facility in the Southern region.
- AJ Total Cold Storage (31,000 pallets): Mechanical and electrical contractor for a modern automated warehouse complex in Ha Nam.
- Processing plant project: Construction of a series of cold storage facilities and freezing systems for Minh Phu Seafood, CP Quality, Nutifood.
6. Standard 7-Step EPC Construction Process
- Field survey of foundations, 3-phase power supply, and ventilation locations in Thanh Hoa.
- Calculate heat load and create 2D/3D HVAC drawings to optimize power consumption.
- Prepare a detailed and transparent cost estimate for materials, and provide all necessary CO/CQ certificates.
- We manufacture fire-resistant PIR panel enclosures and T-Light sliding doors to custom dimensions.
- Transportation and complete installation are carried out by a team of skilled electrical and mechanical workers.
- Vacuuming, filling with eco-friendly refrigerant, leak testing, and a 72-hour cooling-down trial run.
- Acceptance testing, handover of technical documentation, and activation of the 24/7 warranty policy.
7. Frequently Asked Questions (FAQ) About Cold Storage in Thanh Hoa
1. How long does it take to construct a 100-ton seafood cold storage facility in Thanh Hoa?
Typically, this process takes 20-30 days from contract signing and site handover, including panel production, transportation, compressor installation, and standard cooling test runs.
2. Does the Tan Long cold storage facility meet the inspection standards for export to the EU (EU code)?
Absolutely compliant. The entire interior surface of the warehouse uses specialized stainless steel or galvanized steel meeting HACCP/BRC standards, with a stable deep-freeze temperature range of -$le to -18°C with an error of no more than 0.5°C per minute, and a complete electronic temperature chart storing data for 12 months.
Investment in Cold Storage for Seafood & Nghi Son Economic Zone, Thanh Hoa
Contact Tan Long's engineering team today for advice on the most modern, energy-efficient, and cost-effective refrigeration technology.
Cold Storage Construction Project in Adjacent Areas of North Central Vietnam
The key economic zone connects North and South Vietnam with coastal economic zones such as Vung Ang, Nghi Son, and the Southeast region, along with abundant marine resources. Tan Long's team of engineers is ready to conduct on-site surveys and provide technical support within 24 hours.




































