Xiamen AOSIF Engineering Ltd., established in 2001, specializes in R&D and manufacturing of generator sets and alternators. With a 33,333㎡ manufacturing base and ISO9001 & ISO14001 certifications, AOSIF produces high-quality products that meet CE standards. The company partners with renowned engine manufacturers like Cummins, Perkins, and Hyundai. AOSIF's product range includes diesel and gas generators, alternators, silent generator sets, mobile power stations, and control systems. The company offers customization and total power station solutions, aiming to be an industry leader and deliver continuous value to customers.

Xiamen AOSIF Engineering Ltd., established in 2001, specializes in R&D and manufacturing of generator sets and alternators. With a 33,333㎡ manufacturing base and ISO9001 & ISO14001 certifications, AOSIF produces high-quality products that meet CE standards. The company partners with renowned engine manufacturers like Cummins, Perkins, and Hyundai. AOSIF's product range includes diesel and gas generators, alternators, silent generator sets, mobile power stations, and control systems. The company offers customization and total power station solutions, aiming to be an industry leader and deliver continuous value to customers.

Xiamen AOSIF Engineering Ltd., established in 2001, specializes in R&D and manufacturing of generator sets and alternators. With a 33,333㎡ manufacturing base and ISO9001 & ISO14001 certifications, AOSIF produces high-quality products that meet CE standards. The company partners with renowned engine manufacturers like Cummins, Perkins, and Hyundai. AOSIF's product range includes diesel and gas generators, alternators, silent generator sets, mobile power stations, and control systems. The company offers customization and total power station solutions, aiming to be an industry leader and deliver continuous value to customers.

Xiamen AOSIF Engineering Ltd., established in 2001, specializes in R&D and manufacturing of generator sets and alternators. With a 33,333㎡ manufacturing base and ISO9001 & ISO14001 certifications, AOSIF produces high-quality products that meet CE standards. The company partners with renowned engine manufacturers like Cummins, Perkins, and Hyundai. AOSIF's product range includes diesel and gas generators, alternators, silent generator sets, mobile power stations, and control systems. The company offers customization and total power station solutions, aiming to be an industry leader and deliver continuous value to customers.

Ningbo Wantuo Metal Products Co., Ltd., located in Beilun District, Ningbo, Zhejiang, specializes in precision casting, forging, and machining. Our main products include stainless steel (304, 316), aluminum, brass, copper, and more, widely used in industries like petroleum, automotive, and shipbuilding. With ISO9001 and PED certifications, we ensure high production standards, offering precise tolerances (0.01mm) and roughness (Ra0.4). 90% of our products are exported to the US, EU, and other regions. We are committed to providing excellent international services and developing custom solutions for clients globally.

Ningbo Wantuo Metal Products Co., Ltd., located in Beilun District, Ningbo, Zhejiang, specializes in precision casting, forging, and machining. Our main products include stainless steel (304, 316), aluminum, brass, copper, and more, widely used in industries like petroleum, automotive, and shipbuilding. With ISO9001 and PED certifications, we ensure high production standards, offering precise tolerances (0.01mm) and roughness (Ra0.4). 90% of our products are exported to the US, EU, and other regions. We are committed to providing excellent international services and developing custom solutions for clients globally.

As an efficient and convenient domestic automobile trading service platform, WuYou Good Car Auto Sales Co.,Ltd combines the advantages of traditional 4S stores, Internet automobile e-commerce, finance, logistics and other fields to build a new sales service model. It has traded with more than 20,000 downstream secondary dealers and cooperated with more than 10,000 upstream 4S stores. In 2023, the cumulative automobile sales will reach 300 million units, and the overseas vehicle delivery will reach 600 units. The company is headquartered in Xiamen and has wholly-owned subsidiaries in Quanzhou, Chengdu, Xinjiang and other places. It is an enterprise mainly engaged in second-hand car export business, brand authorization agency business, supply chain finance business, extended logistics services and other domestic and foreign automobile trade industries.

As an efficient and convenient domestic automobile trading service platform, WuYou Good Car Auto Sales Co.,Ltd combines the advantages of traditional 4S stores, Internet automobile e-commerce, finance, logistics and other fields to build a new sales service model. It has traded with more than 20,000 downstream secondary dealers and cooperated with more than 10,000 upstream 4S stores. In 2023, the cumulative automobile sales will reach 300 million units, and the overseas vehicle delivery will reach 600 units. The company is headquartered in Xiamen and has wholly-owned subsidiaries in Quanzhou, Chengdu, Xinjiang and other places. It is an enterprise mainly engaged in second-hand car export business, brand authorization agency business, supply chain finance business, extended logistics services and other domestic and foreign automobile trade industries.

As an efficient and convenient domestic automobile trading service platform, WuYou Good Car Auto Sales Co.,Ltd combines the advantages of traditional 4S stores, Internet automobile e-commerce, finance, logistics and other fields to build a new sales service model. It has traded with more than 20,000 downstream secondary dealers and cooperated with more than 10,000 upstream 4S stores. In 2023, the cumulative automobile sales will reach 300 million units, and the overseas vehicle delivery will reach 600 units. The company is headquartered in Xiamen and has wholly-owned subsidiaries in Quanzhou, Chengdu, Xinjiang and other places. It is an enterprise mainly engaged in second-hand car export business, brand authorization agency business, supply chain finance business, extended logistics services and other domestic and foreign automobile trade industries.

Founded in 2015, Nanjing Fudu is a core subsidiary of Green Holdings and its sole integrated facility for design, production, testing, and service, specializing in power system equipment and photovoltaic energy storage devices. Under Green Holdings’ overseas growth, a dual-brand strategy operates: Nigeria’s VANGE (brand: VANGE) focuses on R&D, design, and sales of standard industrial/commercial and household energy storage products; while Nanjing Fudu (brand: PORTA) specializes in portable and customized energy storage solutions. Nanjing Fudu’s independently developed products—including portable energy storage systems, vehicle-mounted energy storage systems, solar-storage-diesel smart energy cabins, and foldable photovoltaic energy storage systems—have gained strong client interest, with rapid business growth. Backed by over a decade of experience, it holds ISO9001 certification, with two production bases (Nanjing, Chuzhou) and one Nanjing R&D center, supported by four functional centers (Project, Engineering, Design, Chuzhou Experimental) for stringent quality control. Committed to global green new energy’s photovoltaic and energy storage sectors, Nanjing Fudu delivers tailored integrated energy storage solutions for commercial/industrial applications, driving worldwide sustainable energy transition.

Founded in 2015, Nanjing Fudu is a core subsidiary of Green Holdings and its sole integrated facility for design, production, testing, and service, specializing in power system equipment and photovoltaic energy storage devices. Under Green Holdings’ overseas growth, a dual-brand strategy operates: Nigeria’s VANGE (brand: VANGE) focuses on R&D, design, and sales of standard industrial/commercial and household energy storage products; while Nanjing Fudu (brand: PORTA) specializes in portable and customized energy storage solutions. Nanjing Fudu’s independently developed products—including portable energy storage systems, vehicle-mounted energy storage systems, solar-storage-diesel smart energy cabins, and foldable photovoltaic energy storage systems—have gained strong client interest, with rapid business growth. Backed by over a decade of experience, it holds ISO9001 certification, with two production bases (Nanjing, Chuzhou) and one Nanjing R&D center, supported by four functional centers (Project, Engineering, Design, Chuzhou Experimental) for stringent quality control. Committed to global green new energy’s photovoltaic and energy storage sectors, Nanjing Fudu delivers tailored integrated energy storage solutions for commercial/industrial applications, driving worldwide sustainable energy transition.

Founded in 2015, Nanjing Fudu is a core subsidiary of Green Holdings and its sole integrated facility for design, production, testing, and service, specializing in power system equipment and photovoltaic energy storage devices. Under Green Holdings’ overseas growth, a dual-brand strategy operates: Nigeria’s VANGE (brand: VANGE) focuses on R&D, design, and sales of standard industrial/commercial and household energy storage products; while Nanjing Fudu (brand: PORTA) specializes in portable and customized energy storage solutions. Nanjing Fudu’s independently developed products—including portable energy storage systems, vehicle-mounted energy storage systems, solar-storage-diesel smart energy cabins, and foldable photovoltaic energy storage systems—have gained strong client interest, with rapid business growth. Backed by over a decade of experience, it holds ISO9001 certification, with two production bases (Nanjing, Chuzhou) and one Nanjing R&D center, supported by four functional centers (Project, Engineering, Design, Chuzhou Experimental) for stringent quality control. Committed to global green new energy’s photovoltaic and energy storage sectors, Nanjing Fudu delivers tailored integrated energy storage solutions for commercial/industrial applications, driving worldwide sustainable energy transition.

Founded in 2015, Nanjing Fudu is a core subsidiary of Green Holdings and its sole integrated facility for design, production, testing, and service, specializing in power system equipment and photovoltaic energy storage devices. Under Green Holdings’ overseas growth, a dual-brand strategy operates: Nigeria’s VANGE (brand: VANGE) focuses on R&D, design, and sales of standard industrial/commercial and household energy storage products; while Nanjing Fudu (brand: PORTA) specializes in portable and customized energy storage solutions. Nanjing Fudu’s independently developed products—including portable energy storage systems, vehicle-mounted energy storage systems, solar-storage-diesel smart energy cabins, and foldable photovoltaic energy storage systems—have gained strong client interest, with rapid business growth. Backed by over a decade of experience, it holds ISO9001 certification, with two production bases (Nanjing, Chuzhou) and one Nanjing R&D center, supported by four functional centers (Project, Engineering, Design, Chuzhou Experimental) for stringent quality control. Committed to global green new energy’s photovoltaic and energy storage sectors, Nanjing Fudu delivers tailored integrated energy storage solutions for commercial/industrial applications, driving worldwide sustainable energy transition.

Founded in 2015, Nanjing Fudu is a core subsidiary of Green Holdings and its sole integrated facility for design, production, testing, and service, specializing in power system equipment and photovoltaic energy storage devices. Under Green Holdings’ overseas growth, a dual-brand strategy operates: Nigeria’s VANGE (brand: VANGE) focuses on R&D, design, and sales of standard industrial/commercial and household energy storage products; while Nanjing Fudu (brand: PORTA) specializes in portable and customized energy storage solutions. Nanjing Fudu’s independently developed products—including portable energy storage systems, vehicle-mounted energy storage systems, solar-storage-diesel smart energy cabins, and foldable photovoltaic energy storage systems—have gained strong client interest, with rapid business growth. Backed by over a decade of experience, it holds ISO9001 certification, with two production bases (Nanjing, Chuzhou) and one Nanjing R&D center, supported by four functional centers (Project, Engineering, Design, Chuzhou Experimental) for stringent quality control. Committed to global green new energy’s photovoltaic and energy storage sectors, Nanjing Fudu delivers tailored integrated energy storage solutions for commercial/industrial applications, driving worldwide sustainable energy transition.

Delivering Excellence, Protecting Ground. Discovering Our Commitment to Quality and Innovation at Mat Hub. We are a premier manufacturer specializing in high-quality ground protection mats, engineered to deliver exceptional durability, reliability, and performance. With state-of-the-art production facilities and a commitment to excellence, we provide tailored solutions to meet the diverse needs of industries worldwide, ensuring superior ground protection for construction, events, and industrial projects.

Guangdong Guangyu Feng Ventilation & Cooling Equipment Co., Ltd. is a professional enterprise specializing in ventilation and cooling solutions, integrating research and development, production, sales, and installation. We focus on manufacturing energy-saving air conditioners, evaporative cooling fans, negative pressure fans, and water curtain walls, and also deliver large-scale ventilation and cooling projects. Guided by the principle of "Quality First" and the philosophy of "Customer-Centric, Integrity-Driven", we uphold our brand vision: "Technology for a Better Environment". Our mission is to enhance environmental and living standards, and we continuously evolve with a forward-thinking business mindset. With a dual focus on the domestic market and global expansion, we strive to create win-win partnerships with all our customers, and contribute to society through superior products and exceptional service. As a trusted ventilation and cooling equipment provider in South China, our core values are: "Serve customers with sincerity, and achieve excellence through quality."