The project will cost 7.67bn yuan ($1.11bn; £0.89bn). The total number of construction workers at the massive tower at the time of the accident is still unknown and rescue operations are underway. Deadly accidents are relatively common at industrial sites in China, and anger over lax standards is growing. President Xi Jinping has said authorities would learn the lessons paid for with blood after chemical blasts in the port city of Tianjin killed more than 170 people last year.Poor work conditions must be known by the workers too because accepting them is equal with a signature accord for death. Increasing industrialization with the price of humans lives was criticized in many occasions by international organizations too. However this is a major problem to be solved )if tis will happen) only by country’s government.