# South Korea Korea: Excluding energy / Contractual Currency Basis (BOK ECOS)

South Korea Korea: Excluding energy / Contractual Currency Basis (BOK ECOS) was up 10.9% year on year in September 2026, compared with 10.4% in August 2026.
The level stood at 121.1 2020=100.
Over the past ten years it has ranged from −9.1% (May 2023) to 16.3% (Oct 2021), averaging 2.0%.

- Source agency: Bank of Korea
- Makrognosis code: `KR.MPI.M.NSA.ITEM-502AA-C`
- Frequency: monthly
- Units: 2020=100
- Coverage: 2016-01-01 to 2026-09-01 (129 observations)
- Page: https://makrognosis.robomacro.com/data/south-korea/korea-excluding-energy-contractual-currency-basis-bok-ecos

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 121.1 2020=100 | 10.9 |
| August 2026 | 120.3 2020=100 | 10.4 |
| July 2026 | 118.9 2020=100 | 9.2 |
| June 2026 | 118.2 2020=100 | 8.7 |
| May 2026 | 121.8 2020=100 | 12.2 |
| April 2026 | 121.5 2020=100 | 11.9 |
| March 2026 | 120.0 2020=100 | 9.4 |
| February 2026 | 113.8 2020=100 | 3.8 |
| January 2026 | 113.4 2020=100 | 3.4 |
| December 2025 | 111.8 2020=100 | 2.2 |
| November 2025 | 111.2 2020=100 | 1.3 |
| October 2025 | 110.8 2020=100 | 0.2 |
| September 2025 | 109.2 2020=100 | −1.2 |
| August 2025 | 109.0 2020=100 | −1.9 |
| July 2025 | 108.9 2020=100 | −2.8 |
| June 2025 | 108.8 2020=100 | −2.9 |
| May 2025 | 108.5 2020=100 | −3.1 |
| April 2025 | 108.6 2020=100 | −2.6 |
| March 2025 | 109.7 2020=100 | −0.9 |
| February 2025 | 109.7 2020=100 | −0.5 |
| January 2025 | 109.7 2020=100 | −0.8 |
| December 2024 | 109.4 2020=100 | −0.4 |
| November 2024 | 109.8 2020=100 | −0.1 |
| October 2024 | 110.6 2020=100 | 0.7 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/KR.MPI.M.NSA.ITEM-502AA-C"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/KR.MPI.M.NSA.ITEM-502AA-C",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```