Service functions
Long-term objectives for business units
Transportation and logistics business unit
![](/img/sub3_14.png)
Passenger Transportation and Service business unit
![](/img/sub3_214.png)
Infrastructure
business unit
![](/img/sub3_314.png)
International engineering business unit
![](/img/sub3_414.png)
Social service
business unit
![](/img/sub3_514.png)