In November 2014, we issued unsecured senior notes, including floating rate and fixed rate notes, with varying maturities for an aggregate principal amount of US$8.0 billion (the “2014 Senior Notes”), of which US$1.3 billion was repaid in November 2017, US$2.25 billion was repaid in November 2019 and US$1.5 billion was repaid in November 2021. The 2014 Senior Notes are senior unsecured obligations that are listed on The Hong Kong Stock Exchange, and interest is payable in arrears, quarterly for the floating rate notes and semiannually for the fixed-rate notes. Each of the 2014 Senior Notes were issued under an indenture, dated as of November 28, 2014, between Alibaba Group Holding Limited, as issuer, and The Bank of New York Mellon, as trustee, principal paying agent and securities registrar, as supplemented and amended (the “2014 Indenture”). The 2014 Senior Notes were issued in a private placement transaction that was not subject to the registration requirements of the Securities Act.
In October 2015, we commenced an exchange offer to exchange (i) up to US$300 million aggregate principal amount of our floating rate notes due 2017, (ii) up to US$1,000 million aggregate principal amount of our 1.625% notes due 2017, (iii) up to US$2,250 million aggregate principal amount of our 2.500% notes due 2019, (iv) up to US$1,500 million aggregate principal amount of our 3.125% notes due 2021, (v) up to US$2,250 million aggregate principal amount of our 3.600% notes due 2024 and (vi) up to US$700 million aggregate principal amount of our 4.500% notes due 2034, which are registered under the Securities Act, for equal principal amounts of corresponding tranches of the 2014 Senior Notes, including our outstanding floating rate notes due 2017, 1.625% notes due 2017, 2.500% notes due 2019, 3.125% notes due 2021, 3.600% notes due 2024 and 4.500% notes due 2034. The exchange offer expired in November 2015. As of December 3, 2015, holders of the following tranches of 2014 Senior Notes had tendered their outstanding notes for exchange: (i) US$285,200,000, or 95.1%, of outstanding floating rate notes due 2017, (ii) US$996,658,000, or 99.7%, of outstanding notes due 2017, (iii) US$2,217,290,000, or 98.5%, of outstanding notes due 2019, (iv) US$1,473,138,000, or 98.2%, of outstanding notes due 2021, (v) US$2,233,431,000, or 99.3%, of outstanding notes due 2024 and (vi) US$697,670,000, or 99.7%, of outstanding notes due 2034.
In December 2017, we issued an additional aggregate of US$7.0 billion unsecured senior notes (the “2017 Senior Notes”). The 2017 Senior Notes are senior unsecured obligations that are listed on the Singapore Stock Exchange, and interest is payable in arrears semiannually. Each of the 2017 Senior Notes were issued under an indenture, dated as of December 6, 2017, between Alibaba Group Holding Limited, as issuer, and The Bank of New York Mellon, as trustee, principal paying agent and securities registrar, as supplemented and amended (the “2017 Indenture,” together with the 2014 Indenture, the “Indentures”).
In February 2021, we issued an aggregate of US$5.0 billion unsecured senior notes (the “2021 Senior Notes”). The issuance of the 2021 Senior Notes included US$1.0 billion unsecured senior notes due 2041 (the “Sustainability Notes” or the “2.700% Notes”). The 2021 Senior Notes are senior unsecured obligations that are listed on Singapore Stock Exchange, and interest is payable in arrears semiannually. Each of the 2021 Senior Notes were issued under the 2017 Indenture, as supplemented and amended by the supplemental indentures.
The 2014 Senior Notes, the 2017 Senior Notes and the 2021 Senior Notes (collectively the “Notes”) contain covenants including, among others, limitation on liens, consolidation, merger and sale of our assets, see “— 9. General Terms Applicable to Each Series of Notes — Particular Covenants of Us.” As of March 31, 2022, we are in compliance with all these covenants. In addition, the Notes rank senior in right of payment to all of our existing and future indebtedness expressly subordinated in right of payment to the notes and rank at least equally in right of payment with all of our existing and future unsecured unsubordinated indebtedness (subject to any priority rights pursuant to applicable law).
The proceeds from the issuance of the 2014 Senior Notes were used in full to refinance a previous syndicated loan in the same amount. The proceeds from the issuance of the 2017 Senior Notes were used for general corporate purposes. The proceeds from the issuance of the 2021 Senior Notes (excluding the Sustainability Notes) were used for general corporate purposes. The proceeds from the issuance of the Sustainability Notes were used to finance or refinance, in whole or in part, one or more of our new or existing eligible projects pursuant to our sustainable finance framework. Our sustainable finance framework is available on our website at www.alibabagroup.com/en/ir/esg and has received a "second party opinion" by an independent consultant. Examples of eligible projects include those in the sectors of green buildings, energy efficiency, COVID-19 crisis response, renewable energy and circular economy and design.