OUR QUALITY UNDERSTANDING
CERTIFICATION ISO 9001

Since 2012, DWJ is accredited ISO 9001: 2008 Quality Management Systems (renewed in 2015). But the key to our performance is our unique Quality Procedures, continuously assessed to ensure our commitment for supplying high standard concentrates to our customers.

We are commited to a target of Zero Defect
SUPPLY CHAIN

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As you likely do, we select rigorously our suppliers, with close coordination on operating and technical matters.

Furthermore, our vendors are continually monitored to ensure a uniform supply of materials that meets established requirements.

Our freight forwarders are longterms  partners who are used to clear customs for shipments aimed at virtually every destinations on earth.

QUALITY CONTROL

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Raw materials are carefully controlled before entering the production stage and all incoming raw materials are subject to approval by Quality Control prior to use and receive a label for internal tracking purposes. Many do even undergo tests in their intended end-use application. 

Our experienced Laboratory Team monitors the entire production process thus guaranteeing high quality levels, for the high grades as well as for our most economical concentrates.