Announcement for November 12, 2025 at 09:20 PM GMT

THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES

REMINDER ON THE CHANGE IN LISTING OF WEIBO CORP

As announced on November 05, 2025, Weibo Corp meets the requirements for a change of listing from their listings in the USA to their respective ordinary shares listed in Hong Kong in the MSCI Global Investable Market Indexes (GIMI) as part of MSCI's November 2025 Index Review.

MSCI will implement the change in listings in the MSCI GIMI indexes as market neutral events to reflect the fungibility of the USA and Hong Kong listings of Weibo Corp.

The listing switch of Weibo Corp will also be reflected in relevant non-market capitalization weighted indexes as detailed below:

For indexes where WEIBO CORP ADR (MSCI Code: 75103.01) is an existing constituent and will remain in the index on November 25, 2025, the listing switch of Weibo Corp will be reflected in line with the treatment in the parent indexes.

For indexes where WEIBO CORP (MSCI Code: 75103.01) will be added as part of the November 2025 Index Review, MSCI will use the November 24, 2025 closing price of WEIBO CORP ADR (WB UW Equity).

Furthermore, for certain indexes that exclude foreign listings such as the MSCI China ex Foreign Listing Indexes and the MSCI Hong Kong-Listed Southbound Indexes, the addition of Weibo Corp, if applicable, will be represented by WEIBO CORP A (HK) (MSCI Code: 75103.03), effective on November 25 , 2025, using its Hong Kong price as of the close of November 24, 2025. MSCI will temporarily update the Barra ID of WEIBO CORP A (HK) (MSCI Code: 75103.03) from HKGITC1 to GERYXI1 on November 25, 2025.

Effective from December 08, 2025, MSCI will change the security name, MSCI Code and Barra ID of WEIBO CORP A (HK) (MSCI Code: 75103.03, Barra ID GERYXI1) to WEIBO CORP (MSCI Code: 75103.01, Barra ID HKGITC1).

Lastly, for indexes where WEIBO CORP ADR (US) (MSCI Code: 75103.04) is included, MSCI will temporarily use the Barra ID MEXPMI1 for this security line prior to November 25, 2025. The Barra ID will be updated to USBBTY1 effective November 25, 2025.

THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES

                                     End of announcement.
                                     Further announcements may occur as needed.