Introduction: Clarity, Confidence, Copper First

In a world crowded with imitations, mixed messages, and marketing fluff, the KPS™ – Karat Purity Scale – emerges as a global benchmark for what matters most: truth in purity.  and certified is where it’s at.

KPS™️ XRF and Sigma assayed and certified isn’t just a system. It’s a movement. A universal framework that brings clarity and confidence to the world of precious metals – from copper and silver to gold, platinum, and beyond.

At Ingots We Trust, we are proud to be early adopters and champions of the KPS™️ XRF and Sigma assayed and certified standard. And while we work exclusively with copper ingots and Artbars™ we know every collector and every metal benefits from this revolutionary framework.

What is KPS™? The Karat Purity Scale Explained

The Karat Purity Scale provides a clear, accessible way to define purity across all metals. It is:

• Easy to understand
• Transparent to verify
• Consistent across industries

It mirrors the familiar Karat system used in gold, but extends it universally:

• 24K Cu = .9999 pure copper
• 24K Ag = pure silver
• 24K Au = pure gold
• 24K Pt = pure platinum

For the first time in history, copper prices, silver coins, gold ingots, and platinum castings can all be measured against the same scale – no more scattered definitions or vague marketing claims.

Why the World Needed KPS™

Before KPS™, the precious metals market was inconsistent:

• Gold had karats.
• Silver had decimals.
• Copper had nothing.
• Platinum and palladium used obscure marks.

Even seasoned investors were left guessing.

KPS™️ XRF and Sigma assayed and certified solves this by creating:

• A clear hierarchy of purity
• Verified standards across all metals
• Labels backed by hallmarking and assay

Why Copper Leads the Way

At Ingots We Trust, we have always believed that Copper is Precious. Yet the lack of a universal purity standard often held copper back from sitting proudly alongside gold and silver.

Now, through KPS™️ copper claims its rightful seat at the table.

We were among the first to adopt KPS™️ XRF and Sigma assayed and certified with our flagship pieces:

• The Precious™ 1kg Artbars™ – stamped 24K Cu, .9999 pure
• The Behemoth™ 5kg Artbars™– a certified monument to copper purity

These are the world’s first KPS™️ XRF  and Sigma assayed and certified copper Artbars™, setting a benchmark for transparency, excellence, and collector trust.

How KPS™ Helps Buyers, Sellers, and Makers

For Buyers & Collectors

• Know exactly what you’re buying
• Compare metals on a level playing field
• Avoid misleading purity claims

For Sellers & Makers

• Sell with certification and confidence
• Build long-term trust with customers
• Distinguish high-purity pieces from mass-market stock

For Artisans & Designers

• Showcase craftsmanship with integrity
• Use purity marks as storytelling tools
• Elevate work to the same standard as gold and silver

A Standard for the Future

Gold and silver have long been considered symbols of wealth – but copper was the first metal of civilisation, trade, and technology.

With KPS™, copper – along with every fine metal – is now measured, marked, and elevated with the dignity it deserves.

Whether you’re holding:

• A 24K Cu Copper Ingot from IWT
• A 99.99% gold coin
• A .999 silver round
• A pure platinum casting

You should know, with confidence, exactly what you’re holding – and why it matters.

IWT: Proudly Copper. Proudly KPS™.

At Ingots We Trust, we will always remain proudly copper. We work exclusively with the purest 24K Cu, using the KPS™ scale to certify that our Artbars™ are the finest copper creations on Earth.

But this is about more than a brand. KPS™ is the cornerstone of a better industry – for copper, for collectors, and for every precious metal.

In Summary

• KPS™ (Karat Purity Scale) is the first universal purity standard for copper, gold, silver, platinum, and more.
• It brings clarity, protects collectors, and elevates artisans.
• The Precious™ and The Behemoth™ are the world’s first KPS™️ XRF and Sigma assayed and certified copper Artbars™.
• Copper has always been precious – now it has the recognition and standard it deserves.

👉 “We don’t mimic gold or silver. We honour copper. And with KPS™, the world can now honour them all.”

Learn More About KPS™
Explore the 24K Cu Range
Visit the Copper Knowledge Hub