The Inter-regional Road project connecting Ho Chi Minh Road with National Highway 70B, National Highway 32C from Phu Tho province to Yen Bai province has a total adjusted investment of VND 2,120 billion, the project investor is the Phu Tho Provincial Construction Investment Project Management Board (before the merger, it was the Phu Tho Provincial Traffic, Civil and Industrial Construction Investment Project Management Board).
This project was started on December 1, 2021, after more than 3 years, the main inter-regional road with a total length of more than 53 km has now been opened to traffic, passing through the districts of Tam Nong, Cam Khe, Ha Hoa of Phu Tho province, connecting with Tran Yen district, Yen Bai province.

Currently, there is still a first section of the route from Km0 - Km2+452 in Lam Son commune, Tam Nong district (rearly supplemented section) and a branch line of more than 3 km long connecting from the main route in Phong Thinh commune, Cam Khe district (before merging administrative units, Cap Dan commune) to Cam Khe Industrial Park - the largest industrial park in Phu Tho province with an area of up to 450 hectares.
The above branch line has been deployed since the end of October 2024, under Package No. 32 of the inter-regional road project, the winning bidder with a price of more than 96 billion VND is Traffic Construction Corporation 8 - JSC. The implementation location is in Phong Thinh commune and Cam Khe town.

According to the reporter of Lao Dong Newspaper in early March, at the project site, the contractor mobilized many large vehicles and equipment to construct the inter-regional branch road.

It can be seen that in Phong Thinh commune, the road mainly passes through the fields, vehicles are digging away the layer of organic soil, filling it with tightly paved soil. In Cam Khe town, the construction unit has cut hills and mountains to make a road connecting to the southwest of Cam Khe Industrial Park, creating a sky-high slope, although the hill has been lowered, there is still a steep slope compared to the industrial park site.

Ms. Ha Thi Van - a worker living in Phong Thinh commune (in the old Xuong Thinh commune) - shared: "Previously, workers from Xuong Thinh, Son Tinh, Cap Dan communes (old) when going to work in the industrial park had to go around the hill, go through the main road of the town and then go to the main gate in the East, but if the new road was completed, people would be able to go straight across the hill to the West, saving a lot of time".

According to the People's Committee of Cam Khe district, the project to reclaim 11.81 hectares of 463 households (expected), including residential land, agricultural land and 17 graves (completed). Of which, there are 11 households with residential land to be resettled (4 households in Cam Khe town and 7 households in Phong Thinh commune). To date, 9.5 hectares of land have been cleared, the remaining 2.31 hectares concern 11 households with residential land and 11 households with agricultural land.

Conduct the declaration of the counting, prepare compensation plans, organize to collect people's opinions on compensation, support and resettlement plans, in cases of non-coordination, the compulsory counting will be conducted. Completion time is in the first quarter of 2025.
At the same time, implement the approval of land recovery, approval of compensation, support, resettlement plans and payment of compensation funds to households and individuals according to regulations, in cases where compensation and support funds are not received, and the site is not handed over, compulsory land recovery or construction protection will be carried out. Completion time is in May 2025.