19. The employer may add information elements regarding a hazardous product by including them in an appendix at the end of the supplier’s safety data sheet, if those elements(1) subject to the last paragraph of section 18, are complementary, accurate and do not contradict the information elements contained in the supplier’s safety data sheet; and
(2) do not constitute information regarding which an application for exemption has been submitted under section 62.7 of the Act.