Market & cases
Costs, pricing and what real orders teach us.
- Market & cases
Warranty, Spare Parts and Service for Chinese Equipment: What to Put in the Contract
"A 1-year warranty" with no detail is an empty line. What the warranty must actually cover, how to secure parts availability for 5–10 years, and how to hold service with a retention lever instead of a promise.
Arkadii Vakhnovskyi4 min readRead article - Market & cases
Turnkey Production Lines from China: Procurement and Commissioning Stages
Buying a line is not buying a machine. We break down the project stages from spec and layout to FAT, installation, SAT and reaching rated output — plus who is accountable for integrating units from different suppliers.
Arkadii Vakhnovskyi4 min readRead article - Market & cases
CNC Machines from China: How to Verify the Manufacturer and Avoid Junk
The price of near-identical CNC machines varies by 2x — and the difference is hidden in the guideways, ball screws, spindle and control system. A checklist for reading the spec, running acceptance testing and not buying an unserviceable orphan.
Arkadii Vakhnovskyi4 min readRead article - Market & cases
Importing Industrial Equipment from China: From Choosing a Factory to Line Start-Up
Machinery is not a batch of goods — it's a 5–10 year asset. How to pick a manufacturer over a trader, what to write into the contract about commissioning, acceptance testing (FAT/SAT) and service, and where the hidden costs hide.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
Shipping Lithium Batteries as Dangerous Goods from China: The BESS Compliance Playbook
Moving lithium batteries by sea means Class 9 dangerous goods, UN 3480/3481/3536, a UN 38.3 test summary, SDS, DGD and 30% state of charge. Here is how to avoid a stuck container.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
BESS Wholesale for EPC and Installers: When Buying Direct From the Factory Beats the Distributor
Buy BESS direct from a Chinese factory as an EPC or installer: how much margin the distributor takes, how to close the warranty, certification and DG-shipping objections, and when direct import genuinely wins.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
BESS Certification Explained: UN 38.3, IEC 62619, IEC 62933, UL 9540 & UL 9540A
Which certificates a battery energy storage system actually needs to import and deploy safely — transport (UN 38.3), cell/battery (IEC 62619), system (IEC 62933-5-2, UL 9540/9540A), PCS and market access — and how to verify a certificate is genuine.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
How to Size a BESS for Peak Shaving: kW vs kWh, C-Rate and a Step-by-Step Method
A practical guide to sizing a commercial battery energy storage system — how to calculate power (kW) and energy (kWh) for peak shaving, backup and arbitrage, with worked examples, C-rate math and end-of-life margins, current as of 2026.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
LiFePO4 Cells from China Wholesale: Buy Grade A, Not Relabelled Grade B
Sourcing prismatic LiFePO4 cells for BESS direct from the factory in China. Formats from 280/314/320Ah to the new 500+Ah generation, cycle life, the specs buyers must pin — and above all, how to tell Grade A from relabelled Grade B and trace a cell back to its maker.
Arkadii Vakhnovskyi7 min readRead article - Market & cases
Containerized BESS 20ft & 40ft: What's Inside and How to Spec One for Your Site
A practical guide for EPC contractors and businesses: how many MWh a modern 20ft containerized BESS holds, what's inside (LFP cells, BMS, PCS, liquid cooling, fire suppression) and how to choose the system and the factory.
Arkadii Vakhnovskyi7 min readRead article - Market & cases
Import Battery Storage from China: The EPC and C&I Buyer's Guide to BESS Container Suppliers
A full guide for EPC contractors, installers and C&I buyers: how to import BESS from China direct from the factory — from 5 MWh liquid-cooled containers to Grade-A cell verification, certification and dangerous-goods logistics.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
Solar Inverters from China for Business: How to Choose String, Hybrid or Central for Your Project
A practical guide to sourcing solar inverters from China for C&I projects: inverter types, MPPT and DC:AC sizing, BESS compatibility, grid-code checks and warranty verification.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
How to Verify a Solar Panel Factory in China Before You Sign
A staged checklist to verify a Chinese solar panel manufacturer for EPCs and developers: IEC 61215/61730, EL imaging, flash-test binning, insured warranty and Tier-1. How to avoid getting Tier-2 for the price of Tier-1.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
How Many Solar Panels Fit in a 40HQ Container: 2026 Batch Sizing Guide
A direct calculation for EPCs and installers: a modern 40ft High Cube holds ~620–720 large-format panels (~18–20 pallets). We cover the formula, kW per container, and why the old "500 panels" figure misleads.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
VAT and Duty on Solar Panels, Inverters and Storage: What You Actually Pay at Customs
Before you order a container of panels, inverters or BESS, know your landed tax bill. How HS codes drive import duty and VAT, when energy-equipment relief applies (Ukraine 2026 as a worked example), and how to confirm your rate before you sign.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
N-type vs P-type Solar Panels: TOPCon, HJT or XBC for Your Project
N-type vs p-type panels for EPCs and developers: efficiency, degradation, temperature coefficient and how to choose between TOPCon, HJT and XBC at container scale.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
Tier 1 Solar Panel Manufacturers List: What It Really Means and How to Use It
What the BloombergNEF Tier 1 list actually measures — bankability, not quality. Who's on the Tier 1 list in 2026, why a Tier 2 factory can still be excellent, and how to use the list to pick panels for your project.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
Import Solar Panels From China: A B2B Buyer's Guide for EPCs and Developers
How to buy PV modules factory-direct from China — by the container / 500+ panels. Real Tier-1 vs Tier-2 relabelling, TOPCon vs PERC, price-per-watt logic, IEC certification, EL and flash testing, and container logistics.
Arkadii Vakhnovskyi7 min readRead article - Market & cases
HS Codes for Steel Import from China: Get the Classification Right
The HS code for your steel import sets the duty rate, VAT base, and whether anti-dumping or quota measures apply. A reference to Chapter 72–73 codes for rolled steel, pipes and structures — and how to avoid overpaying at customs.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
How Much Steel Fits in a Container: 20ft vs 40ft Payload Guide
Steel is weight-limited, not volume-limited. Payload limits for 20ft and 40ft, the formula to calculate piece counts, and why a 20ft often carries more steel than a 40ft.
Arkadii Vakhnovskyi4 min readRead article - Market & cases
Import Steel from China vs Turkey vs Europe: Where to Source
An honest comparison of China, Turkey and the EU for wholesale steel imports — price per tonne, sea freight and lead time, MOQ, quality standards, anti-dumping duties, and when each origin wins.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
Mill Test Certificate (MTC): How to Read and Verify a Steel Certificate from China
What a mill test certificate is, how EN 10204 types (2.1, 2.2, 3.1, 3.2) differ and why B2B buyers should demand 3.1. How to read the MTC fields and verify authenticity.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
Steel Pipes from China Wholesale: Seamless vs Welded, Standards, QC
How to import steel pipes from China wholesale by the container: seamless vs welded (ERW/LSAW/SSAW), API 5L and ASTM A106/A53 grades, wall-thickness tolerance, MTC and coatings.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
Stainless Steel 304 vs 316 from China: Difference, Grade Verification and Pricing
How 304 differs from 316, how to avoid getting 201 sold as 304, and how to verify batch composition — a guide for wholesale importers of stainless steel from China by the container.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
Galvanized Steel Coil DX51D from China: How to Order GI and Avoid Zinc Substitution
Sourcing galvanized steel coil DX51D from China at container scale: grades DX51D/DX52D, zinc coating Z100–Z275, the #1 coating-substitution scam, and how to lock the zinc weight into your contract.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
Hot Rolled vs Cold Rolled Steel: What to Buy From China
HR vs CR steel for wholesale import from China — surface finish, tolerances, grades, price delta and how to choose the right coil for your application by the container.
Arkadii Vakhnovskyi5 min readRead article - Market & cases
How to Import Steel from China Wholesale: A Buyer's Guide
Import steel direct from Chinese mills — from one container / 20 tonnes. Product types, how pricing is built, the grade-substitution risk, Mill Test Certificates, container logistics and customs.
Arkadii Vakhnovskyi7 min readRead article - Market & cases
Wholesale sourcing platforms in China: 1688, Alibaba and the rest
1688, Alibaba, Made-in-China, Global Sources or Canton Fair — which China wholesale platform suits you. A breakdown of prices, access and risks.
Arkadii Vakhnovskyi7 min readRead article - Market & cases
1688 vs Alibaba: why China's domestic prices are 20–30% lower
1688 vs Alibaba: we explain why China's domestic prices are 20–30% lower, when that saving is real for a wholesale importer, and when it disappears into logistics.
Arkadii Vakhnovskyi6 min readRead article - Market & cases
What you're really paying for: the true cost of sourcing from China
Factory price is only part of the landed cost. Here's every line that goes into what your goods actually cost on arrival.
Dmitry Markov6 min readRead article