No. ADD 4/2022 23 February 2022 Subject: Management discussion and analysis for the performance of the year 2021 ended 31 December 2021 To: President The Stock Exchange of Thailand AddTech Hub Public

(Translation) th August, Ref: SET-- Re: Management's Discussion and Analysis and Operating Results for Quarter / Dear: The President The Stock Exchange of Thailand Filter Vision Public Company

capacity utilization following a steady contraction in export value. Meanwhile, public investment expanded as a result of an acceleration in disbursements by the government. Headline inflation in the second

Central Pattana Public Company Limited Management’s Discussion and Analysis (MD&A) Page 1 of 15 Executive Summary The Company effectively manages all businesses to mitigate the impact of COVID-19

of Jan - Dec 2019 = 2,706.44 million Baht Revenue of Jan - Dec 2019 = 4,680.08 million Baht EASTERN WATER RESOURCES DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT DISCUSSION AND ANALYSIS

revenue under Concession Agreements 5% Cost of Jan-Jun 2019 = 1,311.59 million Revenue of Jan-Jun 2019 = 2,360.75 million EASTERN WATER RESOURCES DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT

1 Pitsanulok Road, Dusit, Bangkok 10300 / Hotline 1111 / www.1111.go.th / P.O. Box. 1111 3) Help Center: Office of the Public Sector Anti-corruption Commission (PACC) 99, Moo 4, Software Park Tower

(Translation) Bangkok Expressway and Metro Public Company Limited Management Discussion and Analysis for the Quarter Ended on June 30, 2019 1 Significant events in the second quarter of the year 2019

K. W. METAL WORK PUBLIC COMPANY LIMITED Head office 259/83 Sukhumvit 71 road, Phrakhanong-nur, Wattana, Bangkok Branch 1 300/142 Moo. 1 Tambon Tarsit, Amohoe Pluag-daeng, Rayong Branch 2 300/138 Moo

(Translation) Bangkok Expressway and Metro Public Company Limited Management Discussion and Analysis for the Quarter Ended on September 30, 2020 1 Significant events in the third quarter of the year