Dear Sir/Madam, The United Nations Children's Fund (UNICEF) of Timor-Leste invites you to submit a sealed bid in the English language under the project of reference for "Construction of solar systems and upgrading WASH facilities in Lautem municipality," Timor-Leste, with the terms set forth in this invitation to bid. Please refer to the attached bid preparation instructions, design, and BoQ templates. Thank you, and we look forward to receiving your competitive bid. Sincerely, Harun Boavida