Outline of Audits on Establishment and Implementation of JBATA's Framework

July 31, 2023
General Incorporated Association JBA TIBOR Administration

Article 23 of the JBA TIBOR Operational Rules ("Rules") requires that, on an annual basis, in principle, JBA TIBOR Administration (JBATA) shall be subject to internal and external audits on "the execution of JBA TIBOR calculation and publication operations, establishment and implementation of processes/procedures and frameworks required under the Rules and the review of the JBA TIBOR administration framework (including reviewing the definitions and calculation methods)".

Internal audit by the Internal Audit Office and the assurance engagement[1] for the Directors' Report on IOSCO Principles Compliance Framework as external audit by Ernst & Young ShinNihon LLC were recently performed. We hereby report the overview of internal and external audits.

1. FY 2022 Internal Audit

(1) Auditors: JBA TIBOR Internal Audit Office

(2) Effective date: October 3, 2022

(3) Audit subjects: Governance framework, Benchmark design, Establishment of benchmark calculation methodology, Framework for accountability

(4) Audit result: There were no findings as the audit result.

2. FY 2022 External Audit

(1) Practitioner: Ernst & Young ShinNihon LLC

(2) Effective date: March 31, 2023

(3) Audit scope: Directors' Report on IOSCO Principles Compliance Framework[2][3]

(4) Applicable standard: Practical Guidelines for Assurance Engagements 3000 "Practical Guidelines for Assurance Engagements Other than Audits or Reviews" issued by the Japanese Institute of Certified Public Accountants ("JICPA")

JBATA will seek to maintain and enhance the transparency, robustness and reliability of JBA TIBOR, and will implement measures so that JBA TIBOR will continue to be internationally recognized as the benchmark that is compliant with the IOSCO Principles and to be widely used as one of the major JPY interest rate benchmarks.




[1] The assurance engagements refer to those defined in I.4.(35) of the "Practical Guidelines for Assurance Engagements 3000 : Practical Guidelines for Assurance Engagements Other than Audits or Reviews" issued by the Japanese Institute of Certified Public Accountants. These assurance engagements have limitations because the procedures are performed by sample based testing and internal control system involves inherent limitations. This assurance engagement was performed for establishment and implementation of JBATA's Framework as at March 31, 2023. Accordingly, JBATA had not received any opinion on the representation of the assurance engagement for any other dates.

[2] In the Directors' Report, Representative Director of JBATA makes a representation that JBATA has established and implemented an appropriate framework to comply with the IOSCO Principles as at March 31, 2023.

Regarding IOSCO principle 7 "Data Sufficiency", JBATA has established and implemented an appropriate framework. However, JBATA fully recognize that size of the underlying market of Euroyen TIBOR (Japan Offshore Market) continues to be smaller compared to that of Japanese Yen TIBOR (Japan unsecured call market) and percentage of submission rates determined by actual data of the underlying market is lower compared to that of Japanese Yen TIBOR.

[3] Please refer to the "Compliance with IOSCO Principles for Financial Benchmarks (19 Principles)" dated March 27, 2023, for JBATA's compliance with IOSCO Principles.(https://www.jbatibor.or.jp/english/news/Compliance_with_IOSCO_19principles_2023.html

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