～にて – At… / in… (very formal)

Type	Structure	Structure example	Notes
Particle (formal written style)	N + にて	場所/時間/手段 + にて + V	Equivalent to で・に in spoken language, but more formal
Nominalized phrase	N + にての + N	当会場にての販売	Used to modify a noun
Emphasis/contrast	N + にては	本件にては	Rare; mostly used in notices/announcements
Set phrases	これにて／以上にて	これにて終了	Fixed phrases in speeches/ceremonies

Indicates the location where something takes place: equivalent to で in speech. Example: 東京にて開催する。
Indicates the time of ending/starting (announcements): 10時にて終了。
Indicates means/method: 電話にてお問い合わせください。 (equivalent to で/により)
Formal tone, often used in announcements, correspondence, and corporate/government documents.
Not used to indicate a destination of movement (× 東京にて行く), but rather the place where an event/action occurs.
Compared with において: において is more academic/general; にて is used more for practical announcements (events, sales, reception, etc.)

会議は大阪にて行います。
The meeting will be held in Osaka.
応募はウェブフォームにて受け付けております。
Applications are accepted via the web form.
本日の営業は17時にて終了いたします。
Business hours today will end at 17:00.
詳細はメールにてご連絡いたします。
Details will be sent by email.
これにて式を閉会いたします。
We hereby close the ceremony.
当店にての交換はレシートが必要です。
Exchanges at our store require a receipt.
現地にて説明会を実施します。
A briefing session will be held on-site.
事故の原因は調査中にて、回答は後日となります。
As it is currently under investigation, a response will be provided at a later date. (written)

Formality level: high; used in announcements, invitations, event posters, internal documents.
Spoken equivalents: で/に (location/time) and で/により (means).
Commonly used with: 開催・実施・受け付ける・行う・終了・販売・配布・連絡・案内.
Position: mid-sentence (NにてV), sentence-initial with set phrases (これにて、以上にて...).
Avoid in everyday conversation; prefer で/に for naturalness.

Pattern	Meaning	Difference	Short example
で	Location/means (colloquial)	Natural; less formal than にて	会議は大阪で行う。
において	At/in (general scope)	Academic/formal discourse; not used for “end at (time)”	教育において重要だ。
により／によって	By, via, due to	Emphasizes agent/cause; にて leans toward the means/form	電話により受け付ける。
をもって	As of, by means of	More formal when stating “to conclude as of ...”	本日をもって終了。
これにて	With this, ...	Fixed phrase to end a speech	これにて閉会。

High frequency in materials such as event posters, business emails, and store notices.
“NにてのN” is seen mainly in writing; in speech it's usually “NでのN”.
Does not combine with motion verbs indicating a destination (行く・来る) in the destination sense.
Often paired with polite expressions: 〜いたします、〜しております、〜させていただきます。