19. Commitments and contingencies Letter of credit and Bank guarantees As of March 27, 2020 and June 28, 2019, the Company had one outstanding standby letter of credit of 6.0 million Euros, related to the Companys support of a customers transfer of certain manufacturing operations from Berlin, Germany to the Companys facilities in Thailand. As of March 27, 2020 and June 28, 2019, the standby letter of credit was backed by cash collateral of $7.4 million. As of March 27, 2020 and June 28, 2019, there were outstanding bank guarantees given by a bank on behalf of our subsidiary in Thailand for electricity usage and other normal business expenses totaling $1.5 million and $1.6 million, respectively, and there were other bank guarantees given by a bank on behalf of our subsidiaries in China and the United Kingdom to support their operations of de minimis amounts. Purchase obligations Purchase obligations represent legally binding commitments to purchase inventory and other commitments made in the normal course of business to meet operational requirements. Although open purchase orders are considered enforceable and legally binding, their terms generally give the Company the option to cancel, reschedule and/or adjust its requirements based on its business needs prior to the delivery of goods or performance of services. Obligations to purchase inventory and other commitments are generally expected to be fulfilled within one year. As of March 27, 2020, the Company had purchase obligations to third parties of $15.2 million. Indemnification of directors and officers Cayman Islands law does not limit the extent to which a companys memorandum and articles of association may provide for indemnification of directors and officers, except to the extent any such provision may be held by the Cayman Islands courts to be contrary to public policy, such as to provide indemnification against civil fraud or the consequences of committing a crime. Fabrinets amended and restated memorandum and articles of association provide for indemnification of directors and officers for actions, costs, charges, losses, damages and expenses incurred in their capacities as such, except that such indemnification does not extend to any matter in respect of any fraud or dishonesty that may attach to any of them. In accordance with Fabrinets form of indemnification agreement for its directors and officers, Fabrinet has agreed to indemnify its directors and officers against certain liabilities and expenses incurred by such persons in connection with claims by reason of their being such a director or officer. Fabrinet maintains a director and officer liability insurance policy that may enable it to recover a portion of any future amounts paid under the indemnification agreements.