# South Korea Korea: Energy / Won Basis (BOK ECOS)

South Korea Korea: Energy / Won Basis (BOK ECOS) was up 47.8% year on year in September 2026, compared with 31.0% in August 2026.
The level stood at 259.0 2020=100.
That is the highest reading since September 2022.
Over the past ten years it has ranged from −50.8% (Apr 2020) to 110.9% (Oct 2021), averaging 13.9%.

- Source agency: Bank of Korea
- Makrognosis code: `KR.MPI.M.NSA.ITEM-501AA-W`
- Frequency: monthly
- Units: 2020=100
- Coverage: 2016-01-01 to 2026-09-01 (129 observations)
- Page: https://makrognosis.robomacro.com/data/south-korea/korea-energy-won-basis-bok-ecos

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 259.0 2020=100 | 47.8 |
| August 2026 | 230.4 2020=100 | 31.0 |
| July 2026 | 222.8 2020=100 | 24.5 |
| June 2026 | 222.6 2020=100 | 26.2 |
| May 2026 | 254.8 2020=100 | 46.8 |
| April 2026 | 256.3 2020=100 | 39.2 |
| March 2026 | 285.0 2020=100 | 47.0 |
| February 2026 | 187.9 2020=100 | −7.5 |
| January 2026 | 176.9 2020=100 | −15.6 |
| December 2025 | 175.3 2020=100 | −12.4 |
| November 2025 | 176.0 2020=100 | −9.8 |
| October 2025 | 171.8 2020=100 | −11.5 |
| September 2025 | 175.3 2020=100 | −5.8 |
| August 2025 | 175.9 2020=100 | −10.4 |
| July 2025 | 178.9 2020=100 | −15.3 |
| June 2025 | 176.4 2020=100 | −15.6 |
| May 2025 | 173.6 2020=100 | −17.1 |
| April 2025 | 184.1 2020=100 | −16.4 |
| March 2025 | 193.9 2020=100 | −6.7 |
| February 2025 | 203.0 2020=100 | −1.4 |
| January 2025 | 209.5 2020=100 | 4.9 |
| December 2024 | 200.2 2020=100 | 4.5 |
| November 2024 | 195.1 2020=100 | −3.3 |
| October 2024 | 194.1 2020=100 | −11.8 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/KR.MPI.M.NSA.ITEM-501AA-W"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/KR.MPI.M.NSA.ITEM-501AA-W",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```