That company has a monopoly on the supply of electricity in this region.

That company is monopolising the market.

He buys fresh vegetables at the local market every Saturday.

He buys fresh vegetables at the local market every weekend.

My company is located in Tokyo.

I always keep an eye on the trends in the financial market.

He made a large profit in the securities market.

We buy fresh vegetables at the open-air market every weekend.

He made a large profit in the stock market.

The labor market situation is tough.