PT Dok dan Perkapalan Air Kantung (DAK) are direct subsidiaries owned by the Company, which aim to support the Company in the provision of repair services and new shipbuilding. DAK is a company engaged in providing docking services and has a strategic location on the international shipping line of Selat Malaka. PT Dok dan Perkapalan Air Kantung (DAK) was established based on Notarial Deed Imas Fatimah, S.H., No. 01 dated February 1, 1996. Services provided include:
TIMAH's Share Ownership is as follows :
| Shareholders | Number of Shares (/Share) | Ownership Percentage (%) |
| PT TIMAH Tbk | 1,199,630 | 99.99 |
| PT TIMAH Industri | 120 | 0.01 |
The composition of the Board of Commissioners and Directors of PT Dok dan Perkapalan Air Kantung (DAK) is as follows :
| Name | Occupation |
| Darmadi Aries Wibowo | Commissioner |
| Muhammad Hatta | President Director |
| Bambang Wibisono | Director |
Website: www.pt-dak.co.id
