1. The document is a sales letter from a pure drinking water service company promoting their home delivery service to the manager of R.K. Groups of industries Ltd. in Gazipur, Bangladesh. 2. It notes that underground water reserves have problems in many areas of Bangladesh, including Gazipur, and offers a free sample of their mineral spring water which is guaranteed pure and safe for the manager to try. 3. A service representative will deliver the free sample and explain their home delivery program if the manager returns the enclosed information request card.