Quick google search of Pentro's own text reveals that it has been copied word for word from other websites - Halliburton is one, and a seemingly genuine Oando is another.
Looks like the same crowd did an identical scam with a company called Subsea Dredging.
Check the halliburton site for the text that I'm talking about - it is exactly as found on the Pentro site.
Completion Fluids - Halliburton
Give this one a WIDE berth!!!!!