How We Do It

Purchasing Process Flow

Grading / Sorting

This can occur either on site or at your place with one of our experienced buyers. Our state-of-the-art application provides all the functionality necessary to grade and organize purchases into shopping carts.

Agreement of purchase price

A price for each product is calculated and summarized.

Immediate Payment

Payment can be provided almost immediately. We are also happy to provide a purchase list to you directly from our application.

Toll Refining Process Flow

1

Inbound Logistics

Most goods are received at Petra by truck, plane, or ocean cargo. Please contact Petra for any support with logistics.

2

Receiving Inspection / Weighing

Materials are received, inspected, and weighed. Weight is communicated to the customer as well as any discrepancies.

3

Processing / Sampling

A representative sample is obtained. Preliminary analysis is made on-site to provide estimated content to the customer. All customers are always welcome to witness the entire sampling process as well as receive a sample.

4

Hedging / Payment

Subject to mutual commercial agreement, Petra can provide some of the most flexible payment and hedging options on the market.

5

Final Assay

The sample is sent to our globally accredited laboratories, then we do the final test(ICP), We determine the final quantity of returnable metals