english translation

(Translated from original letter)

LACUESTA QUEMADORES                   E39004  SANTANDER (Spain)

13 Jan 2003

Dear Sirs,

In reply to your request about the quality and eficacy of your products, we are pleased to certify, that since many time ago we are using and distributing to our customers the following gas oil (Diesel oil) additives , manufactured and supplied by your company. The obtained results , technical and economical, are satisfactory :

         - Diesel oil additive for Automotive engines "rb bertomeu" beco DA
         - Diesel oil additive for Boilers and Furnaces "rb bertomeu" beco BF

We authorise the circulation of this letter as a reference for any purpose.

Yours faithfully,

Signed : Lacuesta Quemadores S.L.