Humble first-person plural pronoun used when speaking formally about one's own group (company, family, etc.) to someone outside the group.
We will release a new product next month.
Our company is located in Osaka.
Humble first-person singular used in very formal business contexts, especially by a proprietor referring to themselves or their establishment. The plural form is used as a polite singular.
We (our store) are currently running a campaign.
My shop is a five-minute walk from the station.
Irregular kanji usage; not recommended for learners.