WD.001
Wood pallets & offcuts
Joinery & logistics surplus
PRICE
Workshops · warehousesfrom 65DKK / pal
Denmark · Circular material matching
Waste for one company. Resource for another.
The Denmark-based marketplace for residual materials. List, buy, and track your circular impact — all in one workspace.
Built for real material flows in Denmark
MS.014·LIVE LISTING
MATCHING
Stainless steel turnings
Recurring side stream from CNC machining
Volume2.4 t / mo
OriginVejle
Grade316L
PRICE
11.00DKK / kg
Min. lot · 100 kg
Interested buyers
RC.071Precision parts mfg.
94%
RC.092Architectural fabrication
81%
RC.118Reclaim & resale
67%
Listed · 3 active inquiriesVIEW LISTING →
Calculator
What your residual materials are worth.
Drag the slider, pick a material. We show the avoided CO₂ and the value you can recover, both as a seller and as a buyer.
5t / month
CO₂ avoided / yr
96.0t CO₂e
Saved as buyer / yr
240kDKK
Earned as seller / yr
150kDKK
Illustrative figures based on Danish market price spreads and avoided-emission factors per material.
Explore the product02Method
Four steps from side stream to second source.
A combined marketplace and operating model. The platform organises the data; the team makes sure the exchange actually happens.
01
List
Add your recurring residual materials to the marketplace with price, volume, and terms.
Onboarding, classification, listing.
02
Discover
Buyers find your material in the marketplace, and you can browse what other businesses have listed.
Search, filter, fit scoring.
03
Trade
Confirm terms with verified counterparties and complete the exchange — with optional facilitation from us.
Negotiation, terms, handover.
04
Track impact
Every completed exchange auto-credits CO₂ avoided, virgin material displaced, and cost saved to your dashboard.
Live reporting, evidence, tiers.
THE CIRCULAR FLOW · A→B→A
Material from one business becomes input for another.
THE LOOP, IN PRACTICE
A second source for every material.
Every step on the marketplace closes a loop that would otherwise leak out as waste. Each completed exchange is quantified, attributed, and credited to your impact dashboard.
PER MATCH
~ 280 kg
CO₂e avoided, avg.
CYCLE TIME
~ 12 days
list → completed exchange.
09Context
The system isn’t keeping up.
A few grounded data points on where European and Danish material flows actually stand. Real numbers from public sources — and only those.
12.2%
EU circular material use rate in 2024 — up only 0.1pp on 2023, and ~1pp in ten years.
Source·Eurostat / EEA, 2024~58%
Construction & demolition waste as share of total Danish waste.
Source·Danish circular economy dataBetter matching starts with better visibility into material flows.
STAINLESS · MS.014
OAK BOARDS · MS.027
HDPE OFFCUTS · MS.041
FLAGSTONE · MS.058
ALUMINIUM 6063 · MS.063
BRICK · MS.092
PLASTIC SURPLUS · MS.108
TIMBER · MS.121
STAINLESS · MS.014
OAK BOARDS · MS.027
HDPE OFFCUTS · MS.041
FLAGSTONE · MS.058
ALUMINIUM 6063 · MS.063
BRICK · MS.092
PLASTIC SURPLUS · MS.108
TIMBER · MS.121
05Use cases
Material streams suitable for matching.
Initial focus areas. Common in Danish industry, manufacturing, and construction-related businesses — the kinds of materials where structured matching tends to unlock the most value.
MT.014
Stainless steel turnings
CNC side stream
PRICE
Precision machiningfrom 11.00DKK / kg
ST.027
Reclaimed stone & masonry
Construction surplus
PRICE
Demolition · renovationfrom 320DKK / m²
MT.083
Steel I-beams & profiles
Reclaimed structural steel
PRICE
Demolition · constructionfrom 4.20DKK / kg
BR.058
Reclaimed brick
Recovered construction
PRICE
Demolition sitesfrom 4.50DKK / pc
IN.063
Industrial side stock
Mixed leftovers
PRICE
Production · storageNegotiateby lot
Designed for
ManufacturersWorkshopsConstruction-relatedIndustrial operatorsRecurring leftovers
07Commercials
Pricing aligned with real outcomes.
Secondsource is built around successful material matches. We charge a fee when value is created — keeping the model simple, practical, and aligned with results.
PH.01Start
No feeList your material streams.
We help structure and classify what your operations produce. No fee for listing or onboarding.
PH.02Match
No feeWe surface relevant counterparties.
Our network and matching layer identify businesses where your materials may have real value as inputs.
PH.03Scale
Success feeWe earn when an exchange creates value.
A success-based fee on completed value-creating exchanges. Aligned with the outcomes our work produces.
No value created, no fee.
10FAQ
Common questions.
Short, honest answers about how Secondsource works at this stage.
Our initial focus is on harder, recurring material streams — wood, metal, plastic, construction leftovers, industrial side streams, and reusable surplus. If you produce a material recurringly and suspect it could have value to someone else, it is a candidate for listing.
No. Smaller manufacturers, workshops, and construction-related businesses often have some of the most consistent, well-defined material streams. Size matters less than recurrence and clarity of the material.
We do not operate transport ourselves. We help structure the exchange and coordinate handover. Logistics can be arranged by either party or through partners, depending on what works for the specific match.
Through a combination of classification, volume and recurrence, location, and the demand patterns we see across the network. Some streams match quickly; others need more structuring before a credible counterparty can be identified.
Yes — for now. We are starting in Denmark deliberately. The geography, business density, and regulatory context make it the right place to build a credible network before expanding.
We use a success-based model. Listing, structuring, and exploring matches are free. We charge a fee only when an exchange is completed and value is created.
Yes — we recommend it. One well-defined stream is enough to begin. It also tends to be the fastest way to test whether the model works for your operation.
It is a marketplace first. You list, browse, and trade residual materials with other verified Danish businesses. We layer optional facilitation on top — onboarding, classification, and exchange support — so the marketplace works even for streams that need structuring before they can be priced.
That is the most common starting point. The first step is identifying and structuring what you have. Whether or not a credible match exists is something we can assess together.
Get started
Start with the materials you already have.
List one material stream. We help structure it and look for relevant counterparties across the network. No upfront fee, we earn when an exchange creates value.
One material stream is enough to begin.
Free to list, structure, and explore matches.
Built for Danish businesses first.
List a material streamFORM.01