How to Find the HS Code for Import: The Method, Not a List
A step-by-step method to find your product's HS code via the WCO Harmonized System and GRI rules — the code that sets your duty, import VAT and permits.
Import Documents from China: The Complete Checklist for Commercial Shipments
Every document a commercial shipment needs: invoice, packing list, bill of lading, contract, certificate of origin, declaration and permits.
Landed Cost Calculation for China Imports: The Full Formula
The complete landed cost formula — goods, freight, duty, import VAT, broker and hidden fees — with a worked example on a container of steel.
Customs Clearance for Commercial Cargo from China: Duties, Import VAT and the Process
How a company clears a commercial batch from China: the step-by-step process, import duty and VAT, how customs value works and the risk of a value adjustment.
Shipping Lithium Batteries as Dangerous Goods from China: The BESS Compliance Playbook
Lithium batteries ship as Class 9 dangerous goods: UN 3480/3481/3536, UN 38.3, SDS, DGD and 30% charge. How to keep your BESS container from being seized.
BESS Wholesale for EPC and Installers: When Buying Direct From the Factory Beats the Distributor
Buying BESS direct from a Chinese factory as an EPC or installer: how much margin the distributor takes and how to close warranty and shipping objections.
BESS Certification Explained: UN 38.3, IEC 62619, IEC 62933, UL 9540 & UL 9540A
Which certificates a battery storage system needs to import and deploy: transport UN 38.3, cells IEC 62619, system IEC 62933-5-2, UL 9540 and UL 9540A.
How to Size a BESS for Peak Shaving: kW vs kWh, C-Rate and a Step-by-Step Method
How to calculate power in kW and energy in kWh for peak shaving, backup and arbitrage, with C-rate explained and worked examples for a commercial site.
LiFePO4 Cells from China Wholesale: Buy Grade A, Not Relabelled Grade B
Sourcing prismatic LiFePO4 cells for BESS factory-direct: formats from 280/314/320Ah to the 500+Ah generation, cycle life and how to avoid relabelled Grade B.
Containerized BESS 20ft & 40ft: What's Inside and How to Spec One for Your Site
How many MWh a modern 20ft containerized BESS holds, what is inside — LFP cells, BMS, PCS, liquid cooling, fire suppression — and how to spec one for a site.
Import Battery Storage from China: The EPC and C&I Buyer's Guide to BESS Container Suppliers
How EPCs, installers and C&I buyers import battery storage direct from the factory: 5 MWh liquid-cooled containers, Grade-A cell verification and certification.
Solar Inverters from China for Business: How to Choose String, Hybrid or Central for Your Project
Choosing string, hybrid or central inverters for a commercial project: MPPT and DC:AC sizing, BESS compatibility, grid-code checks and warranty verification.