FAQ — Quanta Source
Quanta Source
How it works Our platform FAQ About Contact Submit excess list
FREQUENTLY ASKED QUESTIONS

Straight answers, before you ask.

Anything we haven't covered — talk to us directly. A named trader answers, not a ticket queue.
SELLING EXCESS
What kind of stock do you buy?+
Almost anything on a bill of materials: semiconductors, memory, passives, power, connectors, RF and optoelectronics — current or end-of-life, factory-sealed or opened. From single lines to entire warehouse inventories from site closures or product EOL.
Is there a minimum list size or value?+
No. Larger lists attract stronger blended offers, but we review everything. If a list isn't a fit, we'll tell you quickly and honestly rather than leave you waiting.
How do you value my inventory?+
Our platform prices every line against live aftermarket data, historic transactions and real demand across our buyer network — then an experienced trader reviews the result. That combination is how we arrive at competitive, well-informed offers.
Will my list be kept confidential?+
Yes — strictly. Your identity, pricing and line data are never disclosed to third parties without your consent, and we're happy to work under NDA from the first email.
Do I have to accept the whole offer?+
No. Offers are line-by-line — accept everything, a subset, or nothing. Submitting a list costs nothing and creates no obligation.
BUYING & SOURCING
Can you find obsolete or allocated parts?+
That's our specialty. The same network that buys excess gives us sight of inventory that never reaches the open market — including end-of-life lines still in demand. Send the part number, quantity and any date-code requirements.
How do you guard against counterfeit parts?+
Traceability first: we buy from vetted sources, document provenance, and inspect stock before it ships — with independent testing available on request. Documentation and photos normally accompany every shipment.
Do you sell to individuals?+
We trade business-to-business: OEMs, EMS providers, design houses and distributors. If you're buying for a registered business of any size, we'd like to hear from you.
LOGISTICS & PAYMENT
Who arranges shipping and export paperwork?+
We do — insured freight, customs and export documentation from your dock, whether the stock is in the UK, Europe or Asia. Your team's involvement ends at the loading bay.
How and when do I get paid?+
Bank transfer in GBP, USD or EUR on terms agreed before collection. Payment timing is part of the offer, so there are no surprises after your stock leaves the building.
Where do you operate?+
Headquartered in the UK, with offices in Hong Kong, Shenzhen and Melbourne, trading with partners worldwide. Wherever your stock sits, we can usually collect within days.
SUSTAINABILITY
How is selling excess a sustainability win?+
Redeploying a working component can avoid it being scrapped, and may reduce the need for a newly manufactured replacement. It can also help spare the raw materials, energy and water that new production would otherwise consume.
What happens to parts you can't place?+
We only buy what we're confident we can redeploy — that's the discipline behind our reuse-first approach. Stock we hold is stored appropriately until it finds its next project.
GET STARTED

Still deciding? An offer costs nothing.

Confidential, no-obligation — typically within 48 hours.
Quanta Source — Electronic Components, Global Sourcing
An independent distributor and trader of electronic components. We buy excess inventory, source hard-to-find parts, and keep working components in circulation.
SITE
How it works Our platform FAQ About Contact Submit an excess list
OFFICES
LondonHQ
Hong Kong
Shenzhen
Melbourne
Full addresses →
CONTACT
hello@quanta-source.com
We aim to respond within one business day, across UK, Asia & Australia hours.
CERTIFIED & ACCREDITED
ISO 9001 certified ISO 14001 certified ISO 45001 certified Global Electronics Association member London Chamber of Commerce and Industry member British Chamber of Commerce in China member
© 2026 Quanta Source Ltd. All rights reserved. Registered in England & Wales, company no. 17356050. Registered office: 66 Paul St, London, EC2A 4NA.