Grammar › N1 · 04 Concession and contrast
〜ところを: at a time when; despite
N1 · 04 Concession and contrast
Used in polite speech to show thanks or apology for troubling someone in a certain situation.
Plain form + ところを. Common set phrases: お忙しいところを, お休みのところを. Another use is "just when ..., (something happened to the person)": 見つかるところを.
Examples
お忙しいところをお越しいただき、ありがとうございます。
Thank you for coming in spite of your busy schedule.
食事中のところを失礼します。
Excuse me for interrupting your meal.