Wiktionary
alt. (context business English) A retailer of provisions and general merchandise, owned by a firm which operates a mine or other industry nearby, and at which the firm's employees are required to shop, to pay high prices, and to make payments through payroll deductions or a truck system, typically resulting in the accumulation of considerable employee indebtedness. n. (context business English) A retailer of provisions and general merchandise, owned by a firm which operates a mine or other industry nearby, and at which the firm's employees are required to shop, to pay high prices, and to make payments through payroll deductions or a truck system, typically resulting in the accumulation of considerable employee indebtedness.
Wikipedia
A company store is a retail store selling a limited range of food, clothing and daily necessities to employees of a company. It is typical of a company town in a remote area where virtually everyone is employed by one firm, such as a coal mine. In a company town, the housing is owned by the company but there may be independent stores there or nearby.
The store typically accepts scrip or non-cash vouchers issued by the company in advance of weekly cash paychecks, and gives credit to employees before payday. Except in very remote areas, company stores became scarcer after the miners bought automobiles and could travel to a range of stores. Even so, the stores could survive because they provided convenience and easy credit.
Company stores have had a reputation as monopolistic institutions, funnelling workers' incomes back to the owners of the company. Company stores often faced little or no competition and prices were therefore not competitive. Allowing purchases on credit enforced a kind of debt slavery, obligating employees to remain with the company until the debt was cleared.
Regarding this reputation, economic historian Price V. Fishback wrote that:
The company store is one of the most reviled and misunderstood of economic institutions. In song, folktale, and union rhetoric the company store was often cast as a villain, a collector of souls through perpetual debt peonage. Nicknames, like the "pluck me" and more obscene versions that cannot appear in a family newspaper, seem to point to exploitation. The attitudes carry over into the scholarly literature, which emphasizes that the company store was a monopoly.
(The songs Fishback mentions include the popular folk song Sixteen Tons, which includes such lines as "Saint Peter, don't you call me- I can't go. I owe my soul to the company store.")
Company stores existed elsewhere than the United States, in particular in the early 1900s in Mexico, textile workers at the largest cotton mill were paid in scrip. In 1907 workers attacked and looted the Río Blanco, Veracruz textile company's store. The workers were gunned down by the Mexican military, but in the aftermath of the violence, more retail outlets were opened in Rio Blanco.
The stores served numerous functions, such as a locus for the government post office, and as the cultural and community center where people could freely gather.
Usage examples of "company store".
Once, as a small child, when caught by Nick Rael walking out of the general store (then the Devine Company Store) with his pockets  .
Their food and supplies came from the company store, at steep prices.
They worked with candles in their caps and had to buy their own candles from the company store.
He received a report yesterday that an unidentified man bought ten drums of aviation fuel and two drums of oil at the Hudson's Bay Company store in Fort Smith.
I hired a trap and drove out of town, and while I'm no farmer, it looked to me as though the Upper Missouri Corporation might be on a good thing-rail and river convenient, good soil by the millions of empty acres, and nothing missing except thousands of contented kraut-eaters to be enslaved to the company store.
They've closed the company store and cut off the water and electricity to our cottages, he challenged her.
She was holding a big cardboard box full of acrylic Windows coffee mugs from the company store in Building Fourteen.