The Company recorded pretax restructuring charges of $955 million inception-to-date under the Synergy Program on a continuing operations basis, consisting of severance and related benefit costs of $647 million , asset write- downs and write-offs of $263 million and costs associated with exit and disposal activities of $45 million . Asset Write-downs and Write-offs The restructuring charges related to the write-down and write-off of assets in 2019 under the Synergy Program were as follows: • The Company recorded a charge of $143 million for other miscellaneous asset write-downs and write-offs, including the shutdown of several small manufacturing facilities and the write-off of non-manufacturing assets and certain corporate facilities. The charge related to Industrial Intermediates & Infrastructure ( $2 million ), Performance Materials & Coatings ( $28 million ) and Corporate ( $113 million ). These manufacturing facilities were substantially shut down by the end of 2020. There were no restructuring charges related to the write-down and write-off of assets in 2020 and 2021 under the Synergy Program. Costs Associated with Exit and Disposal Activities The restructuring charges for costs associated with exit and disposal activities, including contract cancellation penalties and environmental remediation liabilities, totaled $26 million in 2019 and zero in 2020 and 2021 . The Company expects to incur additional costs in the future related to its restructuring activities. Future costs are expected to include demolition costs related to closed facilities and restructuring implementation costs. These costs will be recognized as incurred. The Company also expects to incur additional employee-related costs, including involuntary termination benefits, related to its other optimization activities. These costs cannot be reasonably estimated at this time. 2019 Goodwill Impairment Upon completion of the goodwill impairment testing in the fourth quarter of 2019, the Company determined the fair value of the Coatings & Performance Monomers reporting unit was lower than its carrying amount. As a result, the Company recorded an impairment charge of $1,039 million in the fourth quarter of 2019, related to Performance Materials & Coatings. See Note 13 for additional information. Asset Related Charges 2020 Charges In 2020, the Company recognized pretax impairment charges of $49 million , including additional pretax impairment charges for capital additions made to a bio-ethanol manufacturing facility in Santa Vitoria, Minas Gerais, Brazil ("Santa Vitoria"), which was impaired in 2017 and divested in 2020, as well as charges for miscellaneous write-offs and write-downs of non-manufacturing assets and the write-down of certain corporate leased equipment. The impairment charges related to Packaging & Specialty Plastics ( $19 million ), Performance Materials & Coatings ( $15 million ) and Corporate ( $15 million ). See Note 23 for additional information. 2019 Charges On August 13, 2019, the Company entered into a definitive agreement to sell its acetone derivatives business to ALTIVIA Ketones & Additives, LLC. The transaction closed on November 1, 2019 and included the Company's acetone derivatives related inventory and production assets, located in Institute, West Virginia, in addition to the site infrastructure, land, utilities and certain railcars. The Company remains at the Institute site as a tenant. As a result of the planned transaction, the Company recognized a pretax impairment charge of $75 million in the third quarter of 2019, related to Packaging & Specialty Plastics ( $24 million ) and Corporate ( $51 million ). See Note 23 for additional information. In the fourth quarter of 2019, upon completion of an evaluation of its equity method investment in Sadara Chemical Company ("Sadara") for other-than-temporary impairment, the Company determined that its investment in Sadara was other-than-temporarily impaired and it was written down to zero. Additionally, as part of Dow's evaluation of Sadara, the Company reserved certain of its notes and accounts receivable with Sadara due to uncertainty on the timing of collection. As a result, the Company recorded a $1,755 million charge, related to Packaging & Specialty Plastics ( $370 million ), Industrial Intermediates & Infrastructure ( $1,168 million ) and Corporate ( $217 million ). See Notes 12 and 23 for additional information. 97