is it winter too

No. It's summer but night timing.

what kind of business

The container is moveable with wheels rented by college canteens mostly but is also rented for many use cases. In short, it's a cheap moveable house.

I am not a make of this business my brother-in-law is. I just went there to understand the business so I can make a blog for leofinance but the topic is boring so I understood it and leave it. I still have all the cost estimation and ROI and images.