FAQ

Supply, trust, logistics, certification and payment — direct answers for buyers of solar-plant spare parts in Kazakhstan and Uzbekistan.

Supply & catalogue

Where to buy Huawei inverter spare parts for Uzbekistan?

APEX Export (apex-export.com) ships inverter spare parts from China to Uzbekistan: IGBT modules, gPV fuses, connectors, fans and filters. Huawei boards are off-catalogue and confirmed per request within 1 working day. Air delivery to Tashkent in 5–8 days, quote within 24 hours.

Which IGBT modules fit Sungrow SG110CX?

The Sungrow SG110CX power stage uses the Infineon FF1000R17IE4 module (1700 V / 1000 A, PrimePACK 3 package). We supply it through two tracks: genuine via the manufacturer's open channels, or a certified analogue. Compatibility with your exact inverter revision is confirmed from a nameplate photo.

Do you supply genuine parts or analogues?

Both tracks on every part: (1) genuine parts through the manufacturer's open channels — Infineon, Bussmann/Eaton, Stäubli, ABB, Siemens — serial packaging, full marking; (2) certified analogues produced under contract manufacturing (TÜV / gPV), up to 40% cheaper. The buyer chooses per order.

Do you carry Pylontech control boards?

Control and power boards for Huawei, Sungrow, Pylontech and other brands are off-catalogue: matched to the exact revision and serial number, confirmed within 1 working day. Send a photo of the board and nameplate and we will identify the exact part number.

How to find a part knowing only the inverter model?

Send a photo of the inverter nameplate via WhatsApp, Telegram or email. We match the exact part number against the factory catalogue within 1 working day and send a quote within 24 hours. For standard items (IGBT, fuses, fans, filters) matching takes minutes.

What consumables do you stock for scheduled maintenance?

Air filters and dust screens for inverters, MC4 connectors (genuine Stäubli and certified analogues), terminals, gPV fuses and tools. We assemble seasonal maintenance kits tailored to your plant's equipment list.

Do you supply electrical components for BESS and substations?

Yes: circuit breakers and contactors (e.g. ABB S803PV-S20 for DC circuits), PLC controllers and I/O modules (Siemens SIMATIC S7-1200), sensors and meters. For projects we build a full BOM from your single-line diagram.

Where to check parts compatibility with inverters?

The open compatibility table at apex-export.com/compatibility/: inverter ⇄ part cross-reference with search. Boards are on request. The table grows as new pairs are verified.

Trust & quality

How to verify modules are new, not refurbished?

Demand a video check before dispatch: serial numbers, chip marking and board revisions, test bench. APEX Export records this video for every batch. Signs of refurbishing: solder traces on leads, mismatched date codes, missing factory packaging.

Do you sell refurbished parts?

No. We do not sell refurbished parts — a matter of policy stated in our terms. Every batch is video-verified before dispatch, and a written undertaking is included with the invoice.

How is a batch verified before shipping?

Three stages on video: serial numbers of every unit → chip marking and revisions → a test-bench run. You receive the video file before dispatch and can cross-check it against factory catalogues.

Who is behind Apex Export?

Apex Export is the spare-parts export brand of Beijing Longji Technology Co., Ltd. (Beijing). The parent group has been developing solar and wind projects in China since 2022.

Can I get a sample or trial batch?

Yes, the first order can be a trial — the minimum volume depends on the item category. Specify the part number in your RFQ and we will offer trial-batch options.

What warranty do parts carry?

Genuine items carry the manufacturer's warranty terms. Certified analogues carry the supply-contract terms. Warranty conditions are fixed in the invoice for every line item.

Are there reviews from CIS customers?

We work with customers in Kazakhstan and Uzbekistan and invite every real customer to leave a review after delivery is complete. Copies of shipping documents and references are available on request.

How long have you been in the market?

Apex Export is a specialised spare-parts export brand; the parent group (TOU Energy, Beijing) works in energy and has been developing solar and wind projects in China since 2022.

Logistics

How long does shipping to Tashkent take?

Three options: air 5–8 days (DHL / air cargo, urgent), road 12–18 days (price-optimal), rail container 30–45 days (economical for maintenance kits). In winter (November–March) the rail route takes up to 60 days due to the Khorgos reload.

How much does shipping to Kazakhstan cost?

Cost depends on weight, volume and route — the calculation is included in the quote for your part list. We do not publish fixed rates: batches vary too much. Send your list and shipping cost arrives in the quote within 24 hours.

What is the fastest shipping method?

Air: DHL or air cargo, 5–8 days to Tashkent and Almaty. A tracking number is issued on day 2 after payment.

Do you ship by rail container?

Yes, rail container is the most economical option for maintenance kits and large batches: 30–45 days. Winter note: November–March up to 60 days (Khorgos reload).

When do I get a tracking number?

On day 2 after payment. Tracking numbers arrive by email together with the shipping documents.

Do you ship to other CIS countries?

Our core markets are Kazakhstan and Uzbekistan. For other countries in the region shipping is considered on request: send your part list and destination country.

What if a batch is delayed at customs?

Every batch ships with a full document package: invoice, packing list, certificate of origin. Copies of analogue certificates on request. If a delay does occur, we help resolve documentation until the batch is released.

Do you operate in winter?

Yes, year-round. Winter terms are stated up front: the rail route November–March takes up to 60 days; air and road run at standard times (5–8 and 12–18 days).

Certification & documents

What documents are needed to import into Uzbekistan?

The basic package: invoice, packing list, certificate of origin. Certain categories carry their own certification — see the full breakdown with an HS-code table and step-by-step process in our guide at apex-export.com/guides/import-uz/.

Do IGBT modules need certification?

It depends on the intended use and power class of the equipment they go into. We avoid a one-size-fits-all answer: requirements for your specific item are confirmed on request against the current regulatory base.

Do analogues carry TÜV certificates?

Yes, analogues ship with valid TÜV / gPV certificates; certificate copies are provided together with the quote.

What is gPV and why does it matter?

gPV is the fuse protection class for photovoltaic DC systems: rated for high DC voltage and capable of safely breaking the circuit under load. Using ordinary fuses instead of gPV in solar-plant circuits is not acceptable.

Do you provide a certificate of origin?

Yes, a certificate of origin is part of the standard document package on every batch.

What documents accompany each batch?

Invoice, packing list, certificate of origin, quality-control video. For analogues — copies of TÜV / gPV certificates. For genuine parts — proof of sourcing channel.

How to certify parts in Kazakhstan?

Kazakhstan is in the EAEU — the rules differ from Uzbekistan's. Key differences and procedures are covered in our import guide (apex-export.com/guides/import-uz/, Kazakhstan section). For a specific item, requirements are confirmed on request.

Do you help with customs clearance?

We provide the full document package and advise on the process. The customs broker on your side is appointed by the buyer — we work with them directly.

Ordering & payment

How to order a part?

Five steps: nameplate photo → part number (1 working day) → quote (24 hours) → invoice and payment → dispatch. Requests can be sent via the website form, WhatsApp or Telegram.

Why are there no prices on the site?

Price depends on the sourcing track (genuine/analogue), batch volume and logistics — publishing an "average" price would be misleading. A quote for your part list is prepared within 24 hours.

What is the MOQ?

It depends on the category: consumables carry a higher minimum, IGBT modules can ship from a single unit. The exact minimum is stated in the quote for your list.

What payment methods do you accept?

The primary method is bank transfer (T/T) against the invoice; specific terms are fixed in the invoice. Other options are discussed on request.

How fast is a quote?

Within 24 hours of receiving your part list. Standard items are answered faster; the AI duty email is on watch 24/7 and instantly acknowledges your request.

Can prices be fixed for a quarter?

Yes, for scheduled maintenance purchases we fix prices quarterly on an agreed item list. Terms are set in the supply contract.

Do you work with CIS legal entities?

Yes, we operate B2B contracts with legal entities: contract, invoice, and full document flow for accounting and customs.

How do we start?

Send an inverter nameplate photo or a part list to sales@apex-export.com, WhatsApp or Telegram. From there: part number in 1 day → quote in 24 hours → trial batch.

UAV & drone parts

Do you supply spare parts for agricultural drones?

Yes. New parts for the main ag-drone ecosystems — DJI Agras, XAG, EFT and Hobbywing — across spray systems (pumps, nozzles, flow meters), drive and power parts (motors, ESCs, propellers) and airframes (arms, frames, landing gear, tanks). We ship worldwide.

How do I know a part will fit my drone?

Send a photo of the part or of the unit's nameplate together with your model (for example Agras T40). We match the exact SKU and confirm within 24 hours. If we cannot identify the part with confidence, we say so instead of shipping something close.

Are your drone parts original or aftermarket?

Both — and always labelled. We are not an authorised DJI dealer. Genuine-channel parts and new aftermarket equivalents are quoted separately, so you choose on price and lead time. We never ship refurbished or salvaged parts.

How much cheaper are your parts than the original?

Typically 3–9×. A brushless spray pump for the Agras class is $90–170 FOB from us; the original lists at $394–550 abroad. Carbon propeller pairs list at $98–119 abroad; ours are $28–70. Exact numbers are in the quote for your model.

Do you sell batteries or complete drones?

Batteries are not offered — they are classified as dangerous goods. Complete spray drones (10–50 L classes) are quoted per project with export-licence coordination, because payloads from 20 L fall under China's dual-use export controls. Spare parts are not controlled and ship freely.

How fast can you deliver drone parts?

Air 5–8 days, truck 12–18 days, rail 30–45 days to the CIS; worldwide air freight is quoted by weight. Parts held at our partner factories leave within 48 hours of payment. During the spraying season we recommend keeping a small critical-spares buffer.

Which countries do you ship drones and parts to?

Global. Current priority markets are Kenya, Nigeria, Thailand, Vietnam, Indonesia, Brazil, Mexico and the CIS. We quote door-to-door with freight included, so there is one number to compare.

Do drone parts need an export licence?

Most spare parts — pumps, nozzles, propellers, arms, tanks, ESCs — are not on China's dual-use control list and ship without a licence. Complete drones from 20 L payload, and controlled payloads such as imaging, laser or inertial units, do require a licence. We take that path properly, with real end-user documentation.

Can I mix parts for different drone brands in one order?

Yes. Real fleets are mixed — Agras alongside XAG and EFT. Send the full list with model numbers and quantities; we consolidate everything into one shipment and one quote, which is usually cheaper than per-brand orders.