Certificate

We have examined all content of this annual report with careful caution
as member of executive directors or the person holding the highest
management position in the accounting division, we would like to certify
that the said main information is complete, truthful, not misleading or
withholding any due information. In addition, we would like to certify
that :

(1) The financial statement and data concluded in the annual report has
shown true and complete data in key areas concerning financial position,
operational results and cash flow of the company.

(2) We are responsible for arranging for the company to have a good
system of information disclosure, thus ensuring that  correct and
complete information in all key areas of the company. We also oversee
that this said procedure is followed.

(3) We are responsible for seeing that the company has a good internal
control and in overseeing that this said system is followed. And, as of
December 31, 2006,  we have made an assessment of the internal control
to the  auditors and audit committee of the company, which covers key
deficiencies and changes in the internal control, including wrongful
acts that could affect the financial report of the company.

As certification that these documents are those that we have certified
as correct, we have assigned Mr.Metha Trillit  to place his signature on
all pages of the said documents. If any document does not bear
the signature of Mr. Metha Trillit, we will consider that the
document has not been certified as correct by us.

+-----------------------+-----------------------+-----------------------+
| Name                  | Position              | Signature             |
+-----------------------+-----------------------+-----------------------+
| 1. Mr.Metha Trillit   | Chairman              | ……………………………….         |
|                       |                       |                       |
| 2. Dr.Viwat Trillit   | Managing Director     | ……………………………….         |
|                       |                       |                       |
| 3. Mrs.Wantana        | Signatory Director    | ……………………………….         |
| Pojanalai             |                       |                       |
|                       | Signatory Director    | ……………………………….         |
| 4. Mr.Suvit           |                       |                       |
| Wesaratchawest        | Accounting Manager    | ……………………………….         |
|                       |                       |                       |
| 5.Mr.Visut            |                       |                       |
| Vanitcharoenkarn      |                       |                       |
+-----------------------+-----------------------+-----------------------+

Authorized Director

  ----------------------- ----------------------- -----------------------
  Name                    Position                Signature

  1.Mr.Metha Trillit      Chairman                ……………………………….
  ----------------------- ----------------------- -----------------------

  Certificate

We have examined all content of this annual report with careful caution
as member of executive directors or the person holding the highest
management position in the accounting division, we would like to
certified that the said main information is complete, truthful, not
misleading or withholding any due information.

As certification that these documents are those that we have reviewed to
be complete, truthful, not misleading or withhold any due information,
we have assigned Mr.Metha Trillit  to place his signature on all pages
of the said documents. If any document does not bear the signature of
Mr. Metha Trillit, we will consider that the document has not been
certified as correct by us.

+-------------------------+--------------------+-----------------------+
| Name                    | Position           | Signature             |
+-------------------------+--------------------+-----------------------+
| 1.Mr.Lertchai           | Audit Committee    | ……………………………….         |
| Leelayonkul             | Chairman Audit     |                       |
|                         | Committee Member   | ……………………………….         |
| 2.Mr.Chaiwat            |                    |                       |
| Chandarasrivongs        | Audit Committee    | ……………………………….         |
|                         | Member             |                       |
| 3.Dr.Chongrak           |                    | ………………………………..        |
| Prichanont              | Director           |                       |
|                         |                    | ………………………………..        |
| 4.Mr.Surachai           | Director           |                       |
| Choengvivatkit          |                    | ………………………………..        |
|                         | Director           |                       |
| 5.Ms.Ratchanee Trillit  |                    | ………………………………..        |
|                         | Director           |                       |
| 6.Mr.Nishizawa Masahiko |                    |                       |
|                         |                    |                       |
| 8.Mr.Chaovut Pojanalai  |                    |                       |
+-------------------------+--------------------+-----------------------+

Authorized Director

  ----------------------- ----------------------- -----------------------
  Name                    Position                Signature

  1.Mr.Metha Trillit      Chairman                ……………………………….
  ----------------------- ----------------------- -----------------------