1 - TRANSLATION - KT/PB (Q-Con) 004/2019 February 4,2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for year 2018 Quality Construction

World Corporation Public Company Limited. Ref. World 05-05/2020 4 Moo 11 Hathai Rat Road, Tumbon Lat Sawai Ampur Lum Luk Ka, Pathum Thani Province 15 May, 2020 Subject: Management Discussion and

Management (OFAM) System. Submission is no longer required in paper document to SEC. This project helps the private sector without any burden to submit application  and related  document in paper, meaning 100

all sectors of the capital market, namely the Association of Thai Securities Companies (ASCO), the Association of Investment Management Companies (AIMC), the Thai Bankers Association, the Association of

following reasons; - Sales increased by 649.52 million baht or 13.56 % from 4,790.47 million baht in 2018 to 5,439.99 million baht in 2019 due to the transfer of new 3 completed projects, Maestro19 Ratchada19

of Thailand Enclosure : 1. Financial Statements for the Second quarter ended June 30,2017 2. Management Discussion and Analysis Nawarat Patanakarn Public Company Limited would like to submit Reviewed

of Thailand Enclosure : 1. Financial Statements for the Second quarter ended June 30,2018 2. Management Discussion and Analysis Nawarat Patanakarn Public Company Limited would like to submit Reviewed

structure and strategy changes in the business operations of the SSK made SSK’s performance improved significantly in year 2018, which management foresees that when the restructuring is completed SSK will

Asset Acquisition Transactions Transaction date 10 January 2020 The date in which the Seller has performed all Conditions Precedent and has completed the transfer of assets with reference to the Asset

Management Discussion and Analysis for Interim Business Operations Financial Performance for the year ended December 31 , 2018 (Unit : M ill ion Baht) 2018 2017 Inc./(Dec.) % Construction income