: Extra expenses related to natural calamities (Polar Vortex, Hurricanes and Lightning strikes) 29 8 - Management classification Less: Other extraordinaries (income)/expense 0 5 8 Management classification

that select Big 4 auditors are firms that have higher reporting quality. As a result, without auditor factors, these firms innate fewer mistakes that require audit adjustments. For auditor factor

4Q21, AIS Fibre also created a new standard for the home internet market with the launch of lightning-fast services at the 2Gbps level, which meet the needs of customers seeking the highest quality