Recycling Gold Scrap: Don’t Overlook the Value of Copper and Tin
When we talk about gold recycling, most people think of old jewelry, coins, or pure bullion. In reality, a significant portion of the gold sent for recycling comes from electronic waste – printed circuit boards, electronic components (like resistors, capacitors, connectors, etc.) where gold appears as a very thin coating over copper or brass bases.
Gold is Valuable – But So Are Copper and Tin
In many cases, gold-plated components consist mainly of copper or brass. Additionally, printed circuit boards often contain a significant amount of tin, used as solder. Therefore, when recycling such material, it’s critical not only to evaluate the gold content – but to ask a key question:
Does the refiner also pay for the base metals – especially copper and tin?
This question is crucial, as it can directly affect the financial return for the supplier (scrap seller).
Basic Simulation: 1000 kg of Electronic Scrap
Let’s consider a batch of 1000 kg of electronic scrap with the following estimated content:
- Gold content: 150 grams → estimated value: ~$15,000
- Copper content: 900 kg → estimated value (at $9/kg): ~$8,000
- Tin content: 30 kg → estimated value (at $32/kg): ~$960
In this example, the total value of base metals in the scrap (copper + tin) is nearly $9,000, representing over 37% of the total metal value in the batch.
Not All Refiners Process Base Metals
Refiners that specialize in precious metals only (such as gold, silver, platinum, and palladium) often do not pay for base metals like copper or tin. This is why it’s essential to clarify whether the recycler you’re working with is capable of recovering and crediting these materials.
In most cases, a minimum quantity of several hundred kilograms of copper is required in order to receive credit. Tin is also only credited if properly extracted and processed, which not all refiners offer.
Watch for Platinum and Palladium Too
Some components, especially in industrial or high-end electronics, may contain small but highly valuable amounts of platinum or palladium. Since these metals have high market value, it’s important to ensure the recycler performs lab tests capable of identifying them, even in trace amounts.
Conclusion: Know Your Scrap – Maximize Your Return
Before sending your gold-bearing scrap to a refiner, take a moment to assess it properly. Understand its metal composition and ask your recycler the right questions about their credit policy.
A deep understanding of what’s really inside your scrap – gold, copper, tin, and other precious metals – can make a difference of thousands of dollars in your final payout.
