その節せつ

noun, adverb

at that time; then

A polite, somewhat formal expression referring to a specific past or future occasion previously mentioned. Often used in business or formal correspondence.

• その節せつは大たい変へんお世せ話わになりました。

  Thank you very much for your help at that time.

• またその節せつはよろしくお願ねがいいたします。

  I look forward to your continued support on that occasion as well.