FORM 56-1

ANNUAL INFORMATION DISCLOSURE REPORT

For the Year Ended 31 December 2006

TONGKAH HARBOUR PUBLIC COMPANY LIMITED

CONTENT

+---------------------------------------------------+------------------+
|                                                   | Page             |
+---------------------------------------------------+------------------+
| Section 1 Executive Summary                       | 2                |
+---------------------------------------------------+------------------+
|                                                   |                  |
+---------------------------------------------------+------------------+
| Section 2 Listed Company                          | 4                |
+---------------------------------------------------+------------------+
| 2.1 Risk Factors                                  | 5                |
+---------------------------------------------------+------------------+
| 2.2 Business Nature                               | 7                |
+---------------------------------------------------+------------------+
| 2.3 Production Operations                         | 10               |
+---------------------------------------------------+------------------+
| 2.4 Research And Development (R&D)                | 22               |
+---------------------------------------------------+------------------+
| 2.5 Assets Used in Business Operations            | 23               |
+---------------------------------------------------+------------------+
| 2.6 Future Plan                                   | 25               |
+---------------------------------------------------+------------------+
| 2.7 Litigation                                    | 26               |
+---------------------------------------------------+------------------+
| 2.8 Registered Capital / Shareholder Structure    | 27               |
+---------------------------------------------------+------------------+
| 2.9 Management                                    | 29               |
+---------------------------------------------------+------------------+
| 2.10 Internal Control System                      | 39               |
+---------------------------------------------------+------------------+
| 2.11 Transactions and Connected Parties           | 40               |
+---------------------------------------------------+------------------+
| 2.12 Financial Position and Operating Results     | 44               |
+---------------------------------------------------+------------------+
| 2.13 Other Related Information                    | 60               |
+---------------------------------------------------+------------------+
|                                                   |                  |
+---------------------------------------------------+------------------+
| Section 3 Certified True Information              | 61               |
+---------------------------------------------------+------------------+
|                                                   |                  |
+---------------------------------------------------+------------------+
| Attachment 1 Director and Management Profiles     |                  |
+---------------------------------------------------+------------------+
| Attachment 2 Company Management of the Company,   |                  |
| Subsidiaries and Associated Companies             |                  |
|                                                   |                  |
| Attachment 3 Audit Committee and Independent      |                  |
| Director Report                                   |                  |
+---------------------------------------------------+------------------+