| 1 | Economic Development Department | #6105 | |
| 2 | Economy Development Section | #6110、#6111、#6112 | hchge102@hchg.gov.tw |
| 3 | Economic and Trade Affairs Office | #6150、#6151、#6152 | hchg2622@hchg.gov.tw |
| 4 | Public Utilities Section | #6250、#6251、#6252 | hchge901@hchg.gov.tw |
| 5 | Urban and Rural Development Section | #6210、#6211、#6212 | hchg2624@hchg.gov.tw |
| 6 | Urban Design Review Section | #6180、#6181、#6182 | hchg2625@hchg.gov.tw |