Factory sourcing strategy—Shenzhen R&D + Dongguan Manufacturing (Source: Aiyang); Golden Rule: Full-stack BMS/PCS/EMS capabilities (Source: Aiyang); Core Hubs: 27 major facilities across Shenzhen and Huizhou (Source: CNESA); Tip: Connect via the CIBF exhibition (Source: Daly).
I.
Regional Layout
Dual-Core: Shenzhen for business operations, Dongguan for R&D and manufacturing (Source: Aiyang); 27 Facilities: 27 major sites in Shenzhen and Huizhou (Source: CNESA); Huizhou: Zhongkai High-tech Industrial Base (Source: Weichuangyuan); Dongguan: Lithium battery PACK production (Source: Industry); Foshan: Electronics manufacturing (Source: Fob)—Layout: Shenzhen R&D + Dongguan Manufacturing + Huizhou Base (Three-core structure).
II.
BMS Factories
Daly: Dongguan Daly—Source manufacturer of BMS protection boards (Source: Daly); Chaosiwei: Shenzhen Chaosiwei—Energy storage BMS (Source: Chaosiwei); Smartec: Dongguan Smartec—BMS and cell PACKs (Source: Smartec); Huide: Shenzhen Huide—Cell PACKs and BMS (Source: Huide); Hudd: Guangdong Hudd—Custom BMS and MES traceability (Source: Hudd)—BMS: Source manufacturing + Customization + Traceability (Three key capabilities).
III. Energy Storage System Manufacturers
Aiyang: Aiyang C&I energy storage OEM (full-scenario) (Source: Aiyang); Weichuang: Weichuangyuan lithium battery charging units (Source: Weichuangyuan); Huide: Huide backup power and motive battery storage (Source: Huide); Zhenghe: Huizhou Zhenghe Green Energy (cells, packs, and second-life applications) (Source: Zhenghe); Ainergy: Shenzhen Ainergy (original CATL-based BESS) (Source: ENF)—Systems: OEM, backup power, and second-life applications (three categories).
IV.
Channel Access
B2B: Made-in-China and Alibaba search (Source: HTNXT); Directories: Industry and trade show directories (Source: HTNXT); Filtering: Filtering by certifications such as UL and IEC (Source: HTNXT); Shortlist: A mix of 5–8 suppliers (Source: HTNXT); Gold Suppliers: Certified manufacturers (Source: Alibaba)—Channels: Platforms, directories, and shortlists (three steps).
V.
Trade Show Engagement
CIBF: China International Battery Fair (Shenzhen) (Source: Dali); SNEC: PV & Energy Storage Exhibition (Shanghai) (Source: SOLARbytes); Canton Fair: Energy storage exhibition zone (Source: Industry); Matchmaking: Face-to-face meetings and factory inspections at shows (Source: Industry); Samples: Requesting samples for rapid verification (Source: Industry)—Trade Shows: CIBF, SNEC, and Canton Fair (three platforms).
VI. Factory Audit Key Points
Fully Automated: Fully automated SMT production line (Source: Chaosiwei); MES: MES digital traceability (Source: Hudd); Laser: Laser spot welding and automatic wire stripping (Source: Hudd); Grade A: Grade A battery cells guaranteed (Source: Holo); Testing: BMS three-stage protection (Source: Holo)—Factory Audit: Production line + Traceability + Battery cells (Three-point verification).
VII.
Procurement Recommendations
First, categorize by product type (BMS in Dongguan, PACK in Huizhou); second, use platforms (MIC, Alibaba); third, visit trade shows (CIBF for networking); fourth, conduct factory audits (MES, production lines);
fifth, check certifications (UL, IEC)—Finding factories in Guangdong: Shenzhen + Dongguan + Huizhou (Three key hubs).
