# South Korea Korea: Construction / Original Index (BOK ECOS)

South Korea Korea: Construction / Original Index (BOK ECOS) was down 1.6% year on year in September 2026, compared with 1.5% in August 2026.
The level stood at 84.60 2020=100.
Over the past ten years it has ranged from −27.3% (Jan 2025) to 23.5% (Feb 2017), averaging −1.6%.

- Source agency: Bank of Korea
- Makrognosis code: `KR.IP.M.SA.ITEM-AD00-1`
- Frequency: monthly
- Units: 2020=100
- Coverage: 2016-01-01 to 2026-09-01 (129 observations)
- Page: https://makrognosis.robomacro.com/data/south-korea/korea-construction-original-index-bok-ecos

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 84.60 2020=100 | −1.6 |
| August 2026 | 75.40 2020=100 | 1.5 |
| July 2026 | 76.00 2020=100 | −3.8 |
| June 2026 | 91.40 2020=100 | −4.4 |
| May 2026 | 76.50 2020=100 | −3.7 |
| April 2026 | 76.30 2020=100 | −6.6 |
| March 2026 | 81.70 2020=100 | −5.5 |
| February 2026 | 68.70 2020=100 | −5.9 |
| January 2026 | 68.50 2020=100 | −7.1 |
| December 2025 | 108.0 2020=100 | −6.3 |
| November 2025 | 79.70 2020=100 | −16.6 |
| October 2025 | 69.30 2020=100 | −24.5 |
| September 2025 | 86.00 2020=100 | −3.8 |
| August 2025 | 74.30 2020=100 | −17.7 |
| July 2025 | 79.00 2020=100 | −14.0 |
| June 2025 | 95.60 2020=100 | −12.3 |
| May 2025 | 79.40 2020=100 | −19.4 |
| April 2025 | 81.70 2020=100 | −20.8 |
| March 2025 | 86.50 2020=100 | −16.3 |
| February 2025 | 73.00 2020=100 | −19.6 |
| January 2025 | 73.70 2020=100 | −27.3 |
| December 2024 | 115.3 2020=100 | −7.1 |
| November 2024 | 95.60 2020=100 | −12.3 |
| October 2024 | 91.80 2020=100 | −9.5 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/KR.IP.M.SA.ITEM-AD00-1"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/KR.IP.M.SA.ITEM-AD00-1",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```