Noun + をもちまして

[As of / With (formal closing)]

Connection: Noun (time/event) + をもちまして

Usage: A highly formal expression used to mark a boundary point, typically when announcing the end or conclusion of something. Commonly used in official announcements, ceremonies, and business contexts.

Variations:

• をもちまして (most polite): 本日をもちまして閉店いたします (We will close as of today)
• をもって (slightly less formal): 今回をもって最後とする (This will be the last time)

Examples:

本日をもちまして、当店は閉店させていただきます。(As of today, we will be closing our store.)

今回の公演をもちまして、活動を休止いたします。(With this performance, we will be suspending activities.)

3月31日をもちまして、このサービスは終了となります。(As of March 31st, this service will be terminated.)