Common use of Customer Relationship Clause in Contracts

Customer Relationship. Changes in customer relationship for the six-month period ended June 30, 2020 were summarized as follows: Balance as at December 31, 2019 104,307,663 Acquisitions during the period - Disposals and write-off during the period - Balance as at June 30, 2020 104,307,663 Accumulated amortization Balance as at December 31, 2019 (46,027,850) Amortization for the period (7,430,135) Accumulated amortization on disposals and write-off - Balance as at June 30, 2020 (53,457,985) Net book value Balance as at December 31, 2019 58,279,813 Balance as at June 30, 2020 50,849,678

Customer Relationship. Changes in customer relationship for the six-month period ended June 30, 2020 2019 were summarized as follows: Balance as at December 31, 2019 2018 104,307,663 Acquisitions during the period - Disposals and write-off during the period - Balance as at June 30, 2020 2019 104,307,663 Accumulated amortization Balance as at December 31, 2019 2018 (46,027,85031,126,755) Amortization for the period (7,430,1357,389,310) Accumulated amortization on disposals and write-off - Balance as at June 30, 2020 2019 (53,457,98538,516,065) Net book value Balance as at December 31, 2019 58,279,813 2018 73,180,908 Balance as at June 30, 2020 50,849,6782019 65,791,598

Customer Relationship. Changes in customer relationship for the six-month period ended June 30, 2020 2018 were summarized as followsfollows : Balance as at December 31, 2019 104,307,663 2017 104,308 Acquisitions during the period - Disposals and write-off during the period - Balance as at June 30, 2020 104,307,663 Accumulated amortization 2018 104,308 Balance as at December 31, 2019 2017 (46,027,85016,226) Amortization for the period (7,430,1357,389) Accumulated amortization on disposals and write-off - Balance as at June 30, 2020 2018 (53,457,98523,615) Net book value Balance as at December 31, 2019 58,279,813 2017 88,082 Balance as at June 30, 2020 50,849,6782018 80,693

Customer Relationship. Changes in customer relationship for the six-month period ended June 30, 2020 2017 were summarized as followsfollows : Thousand Baht Balance as at December 31, 2019 104,307,663 2016 104,308 Acquisitions during the period - Disposals and write-off during the period - Balance as at June 30, 2020 104,307,663 Accumulated amortization 2017 104,308 Balance as at December 31, 2019 2016 (46,027,8501,325) Amortization for the period (7,430,1357,389) Accumulated amortization on disposals and write-off - Balance as at June 30, 2020 2017 (53,457,9858,714) Net book value Balance as at December 31, 2019 58,279,813 2016 102,983 Balance as at June 30, 2020 50,849,6782017 95,594