“Arrival at outward office of exchange / 到達國際郵件處理中心 (Chunghwa Post Taiwan)”Normalized: in_transit (In transit)Chunghwa Post (中華郵政) (chunghwapost)USPS (usps)Japan Post (japanpost)

What Chunghwa Post 'Arrival at outward office of exchange' means.

Your Chunghwa Post (中華郵政) EMS or international parcel has arrived at the Taipei International Mail Processing Center (台北國際郵件處理中心) at Taoyuan Airport for export customs clearance and air dispatch from Taiwan.

Try a live tracking number:

What is happening in the supply chain

When an international parcel is mailed at any post office in Taiwan, it is routed to Chunghwa Post's outward office of exchange in Taipei/Taoyuan. Upon arrival, Chunghwa Post scans 'Arrival at outward office of exchange' (到達互換局). After export x-ray and customs release, the parcel is sealed into an airline container with a dispatch number and flight number ('Dispatch from outward office of exchange' / 出口資料，預計班機日期).

92… USPS Awaiting Item Checker →
Verbatim carrier scan
“Arrival at outward office of exchange / 到達國際郵件處理中心 (Chunghwa Post Taiwan)”
Normalized API status
in_transit
Typical time to delivery
4–10 business days
Recommended recipient action
Your parcel is preparing to fly out of Taiwan. Once it lands in the destination country, the same 13-character S10 barcode (…TW) will update on both Chunghwa Post and your national postal service.
Developer / WISMO action
Query GET /v1/track/{number}?carrier=chunghwapost to monitor export flight assignment and destination postal arrival.

How lastscanned normalizes this scan

Instead of maintaining brittle regexes for every carrier's raw scan phrasing across 273 carriers, query GET /v1/track/{number} or connect https://mcp.lastscanned.com.

Get an API keyChunghwa Post (中華郵政) API docs

Synchronous GET request

curl "https://api.lastscanned.com/v1/track/EE123456789TW" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

Normalized JSON response

{
  "carrier": "chunghwapost",
  "trackingNumber": "EE123456789TW",
  "status": "in_transit",
  "statusDescription": "Arrival at outward office of exchange / 到達國際郵件處理中心 (Chunghwa Post Taiwan)",
  "events": [
    {
      "timestamp": "2026-10-26T14:22:00Z",
      "localTime": "2026-10-26T10:22:00",
      "status": "in_transit",
      "description": "Arrival at outward office of exchange / 到達國際郵件處理中心 (Chunghwa Post Taiwan)",
      "location": "TAIPEI INTL MAIL CENTER, TW"
    }
  ]
}

Frequently asked questions

Where do I find the flight number on Chunghwa Post international tracking?
Once Chunghwa Post logs 'Dispatch from outward office of exchange', the scan details often include the scheduled flight date (預計班機日期) and flight code departing Taipei Taoyuan (TPE).
How long does Chunghwa Post EMS take from Taiwan to the US or Japan?
Chunghwa Post EMS typically delivers to Japan in 2 to 4 business days and to the United States in 4 to 8 business days.

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