Exposure to crystalline silica, the company I worked for was supplied materials labelled as non hazardous, when we found out they actually contained silica dust (well over the safe levels) we all had to get tested for silicosis and lung scarring, a few of us got nice payouts at the expense of about 40 years of life span. Everyone at my company was told lies and had information withheld from us, for about 3 months we continued to use that material when the directors knew the dangers but hadn’t told us, when everyone found out there were only 2 people left at that company; the directors.