Process Safety Events (PSEs) 2016 7 19 15 2017 3 2018 4 13 2019 6 1820 15 10 5 0 2015 20 12 *The API 754 standard defines PSE-1 (Tier 1) Events as “LOPC Events of Greater Consequence” and PSE-2 (Tier 2) Events as “LOPC Events of Lesser Consequence” where LOPC refers to “Loss of Primary Containment” **PSE data tracking began in second quarter of 2014; annual data reporting commenced in 2015 20 Inclusion and Diversity At AdvanSix, we provide an inclusive work environment that fosters respect for all our coworkers, customers, suppliers and business partners.