Builders cancel government housing project / housing production leap project?

According to Tejarat News, why did some contractors abandon the National Housing Movement project?
Iraj Rahbar in a conversation with ایسنا He said that the price of construction materials experienced heavy growth this year. Earlier this year, each ton of bulk cement was about 600,000 tomans, which has now reached 1,800,000 tomans and has actually increased by 200 percent. Rebar has increased from 1300 tomans per kilogram to about 20 thousand tomans.
He added that the fact that the price of cement suddenly tripled in about two months is not only due to electricity restrictions.
They are expensive under the pretext of energy, but one of the main reasons for this increase in prices is the stock market in the cement market.
It is said that there are about 15 people in this market who buy cement in general and offer it at the prices they want at the stock exchange.
Referring to Shahriar’s 504-unit site, where he operates, he said: “Currently, we have supported the Shahriar project with all our efforts, but our debt to compromisers is slowly increasing.”
They call regularly and ask for money. Currently, our main work is in the field of cement and rebar. We are an industry and we build a tunnel that we have to build a roof every day.
If the materials arrive, the speed of action increases. But with this situation, we may have to stop working and reduce the number of workers. That is, work capacity decreases, which leads to project prolongation and future inflation.
The Supreme Leader reminded: the officials of the Ministry of Roads and Urban Development should think about the situation of the builders of the National Housing Movement. At first, they said we would issue a credit card and get the materials directly from the factory.