Modification of concessionary agreements and agreements on PPP in the conditions of growth of construction materials cost

In spite of the fact that laws in the field of public-and-private partnership and municipal-and-private partnership as well as in the field of concessions are adopted long ago and are constantly supplemented and changed, legal regulation of this sphere still should be considered imperfect. It is necessary to consider one more problem in modern conditions: that is the significant increase in prices for construction materials, having negative effect on the cost and efficiency of construction projects. At the end of 2021 it demanded a series of new amendments. The order of modification of concessionary agreements and agreements of public-and-private partnership, caused by the growth of cost of construction materials, is considered in the article, the main novelties are systematized.