I saw the thread earlier about Sriracha. I am not sure whether the company AndeB mentioned was different than the one I'm using. I recently [2-3 weeks ago] picked up a bottle at Hong Kong Supermarket. It did have Kosher Certification, and was rather inexpensive [roughly $3 for a 28 oz. bottle]
I included the manufacturer's web site below.
Certification is "Shield Star K".