Common use of Undertaking for Qualifying Option Clause in Contracts

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: _______________________________

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: ________________________________ -Rev 1.2019 AQ EXHIBIT 10.5

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you –Rev 1. 2020 may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: _______________________________

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option –Rev 12. 2021 upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: ________________________________ BRAZIL

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: ________________________________ -Rev 1.2019 EXHIBIT 10.1

Undertaking for Qualifying Option. If you are accepting the Stock Option in writing within 60 days after the offer date and wish to have the Stock Option subject to a lower valuation –Rev 1. 2021 for Belgium tax purposes pursuant to the article 43, §6 of the Belgian law of 26 March 1999, you may agree and undertake to (a) not exercise the Stock Option before the end of the third calendar year following the calendar year in which the offer date falls, and (b) not transfer the Stock Option under any circumstances (except upon on rights your heir might have in the Stock Option upon your death). If you wish to make this undertaking, you must sign below and return this executed Addendum to the address listed above. Employee Signature: _______________________________ Employee Printed Name: _______________________________