📉 Gold Refining Loss Explained: From 97.5% to 99.99% Purity

A Guide by KB Global Refinery Company Limited

At KB Global Refinery Company Limited, we are committed to transparency and education in all aspects of precious metals refining. One of the most common questions our clients ask is:
"How much gold do I lose when refining from 97.5% to 99.99% purity?"

The answer is crucial for miners, traders, and investors who need to accurately estimate returns and value during the refining process.

🧪 The Science Behind Refining Loss

Refining gold is not about creating more gold — it’s about removing impurities. Gold with 97.5% purity (commonly called "975 fine") still contains 2.5% non-gold materials, which must be extracted to achieve 99.99% investment-grade purity.

Let’s break it down using a common example:

🧮 Example: Refining 1 Kilogram of 97.5% Gold

If you bring 1kg (1000 grams) of 97.5% pure gold to KB Global Refinery, here’s what happens:

• Initial pure gold content:

  $$1000g\times 0.975=975g\text{ of pure gold}$$

• After refining to 99.99% purity:

  $$\text{Final weight} = \frac{975g}{0.9999} \approx 975.10g$$

So, after impurities are removed, you're left with approximately 975.10g of highly refined 99.99% pure gold.

📊 Summary Table

✅ What You Actually Lose

The 2.49% loss is not gold — it's the impurities (base metals, other minerals) that are removed in our state-of-the-art refining process. At KB Global Refinery, we ensure that every gram of your pure gold is preserved, while delivering consistent, reliable, and traceable results.

💼 Why This Matters for You

Knowing this refining loss helps you:

• Accurately calculate your net yield

• Understand refining costs and deductions

• Plan more effectively for sales, exports, or investments

📌 Our Commitment

At KB Global Refinery Company Limited, we operate with precision, integrity, and trust. Whether you're a small-scale miner or a major gold dealer, you deserve clarity in every transaction.

🔍 Want to learn more about how our refinery process works or get an instant estimate? Contact our team today or visit our Refinery Contact Page.