Nondairy Creamer?

As the melamine-in-milk-products scandal in China snowballs, the New York Times reported today:

"The F.D.A. said the King Car Food Industrial Company of Taiwan had called back seven products sold under the Mr. Brown label, mostly sold in stores specializing in Asian foods. The company’s tests in Taiwan had determined that its nondairy creamer, which was made in China, was contaminated by melamine, the F.D.A. said. No contaminated products have actually been found on American shelves.

"The F.D.A. also said that it had itself extensively tested milk-based products imported from China into the United States in recent weeks. It said it had found no contamination so far."

Questions: How did 'nondairy creamer' come to be contaminated with milk-based products?

Fleisch dich? Oder, Milch dich? Oder?