[FOURTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2015 Between BAIDU, INC. as Company and THE BANK OF NEW YORK MELLON as Trustee 3.000% NOTES DUE 2020 4.125% NOTES DUE 2025 Company” Trustee” FOURTH SUPPLEMENTAL INDENTURE dated as of June 30, 2015 between Baidu, Inc., an exempted company incorporated in the Cayman Islands (the “ WITNESSETH: Base Indenture Indenture WHEREAS,] [BAIDU, INC. Jennifer Xinzhe Li Chief Financial Officer 6-K 1 d17306d6k.htm FORM 6-K]