About 40% of the salt mined will be used in the chemical industry, which she will create later.
With another 40% being used as a deicer on future roads, especially in the winter, although she did not know how winter would be in this game. The variable Arvina, who upgraded the normal trends to abyss mode, must have also tweaked the winter season. Mystica was guessing the players were in trouble. She is not cut out for whatever trick Arvina has reserved for the players. She had to prepare ahead. It was the benefit of knowing a game designer. The 20% leftover will be processed into table salt and used in the manufacturing of rubber and other goods.
It is fantastic planning, but it will be left out for the future. Her technology tree had a long way to go before fully claiming to be in the steel era.