“…There is a growing body of literature on assurance of sustainability information (for reviews, see Farooq and De Villiers, 2017; Hazaea et al , 2021; Maroun, 2020). Prior studies have investigated a wide range of aspects, such as assurance engagement and processes (Edgley et al , 2015; Farooq and de Villiers, 2020), role of internal auditors (Aureli et al , 2020; Soh and Martinov-Bennie, 2018), assurance quality or reliability of assurance statements (Boiral and Heras-Saizarbitoria, 2020; Hummel et al , 2019), choice of assurance provider (Datt et al , 2020; Zhou et al , 2016), determinants of sustainability assurance (Datt et al , 2018; Simnett et al , 2009) and various effects of sustainability assurance on, for instance, capital markets, investor judgements and reputation (Birkey et al , 2016; Hoang and Trotman, 2021; Radhouane et al , 2020).…”