日本語道場 — Nihongo Dojo

～を経て

~ o hete

via, after going through

When to use it

Use ～を経て in written or formal spoken Japanese to mark a stage, procedure, or span of time that was passed through before reaching the current result — typical of reports, minutes, press releases, and contract-related email. It also marks an intermediate point on a route (physical or organizational): information passing via a branch office, for example. In casual speech you would say ～のあとで or ～を通して instead.

Formation

Nouns: 「N＋を経て」 — almost exclusively nouns denoting a process, procedure, period of time, or waypoint (審査・交渉・承認・歳月・支社).
Verbs: no direct attachment. Nominalize the action first: 「検討する」→「検討の段階を経て」「協議を経て」.
i-adjectives / na-adjectives: not used.
経て is the て-form of 一段動詞経る; the finite form 経た can modify a noun (「二年を経た今」), and 経て itself always leads into a following clause.
Register note: 経て is markedly literary; the neutral equivalents are ～のあと／～を通して.

Examples

After three rounds of negotiation, we finally reached an agreement.
We will place the order officially once it has passed board approval.
After the document screening, we will send you interview details.
Reports go up to head office via the local subsidiary.
After ten years, the business turned profitable.