その会は

that meeting

→ 其の
phrase Rare #30,265
that meeting その means “that,” 会 means “meeting” or “gathering,” and は marks the topic. The phrase introduces a specific meeting or gathering already known from context.
JA: その会は来週の金曜日に開かれます。
EN: That meeting will be held next Friday.

その会は早くて月曜日まで開けない

That meeting won't be opened until Monday at the earliest.

その会は特に出席がよいわけではなかった

Attendance at that meeting was not particularly good.

その会は十時に終わった

The meeting ended at ten o’clock.

私たちが着く頃にはその会は解散しているだろう

By the time we arrive, the gathering will have broken up.

その会は毎年開かれる

That meeting is held every year.