Approximately 88% of the Company’s total bottle/can sales volume to retail customers consists of products of The Coca‑Cola Company, which is the sole supplier of these products or of the concentrates or syrups required to manufacture these products. The remaining bottle/can sales volume to retail customers consists of products of other beverage companies. The Company has beverage agreements with The Coca‑Cola Company and other beverage companies under which it has various requirements. Failure to meet the requirements of these beverage agreements could result in the loss of distribution rights for the respective products.

The Company faces concentration risks related to a few customers comprising a large portion of the Company’s annual sales volume and net revenue. The following table summarizes the percentage of the Company’s total bottle/can sales volume to its largest customers, as well as the percentage of the Company’s total net sales, which are included in the Nonalcoholic Beverages segment, that such volume represents. No other customer represented greater than 10% of the Company’s total net sales for any years presented.

	Fiscal Year
	2018			2017			2016
Approximate percent of the Company’s total bottle/can sales volume
Wal-Mart Stores, Inc.		19	%		19	%		20	%
The Kroger Company		11	%		10	%		6	%
Total approximate percent of the Company’s total bottle/can sales volume		30	%		29	%		26	%

Approximate percent of the Company’s total net sales
Wal-Mart Stores, Inc.		14	%		13	%		14	%
The Kroger Company		8	%		7	%		5	%
Total approximate percent of the Company’s total net sales		22	%		20	%		19	%

The Company purchases all its aluminum cans from two domestic suppliers and all its plastic bottles from two manufacturing cooperatives. See Note 17 and Note 22 to the consolidated financial statements for additional information.

The Company is exposed to price risk on commodities such as aluminum, corn and resin which affects the cost of raw materials used in the production of finished products. The Company both produces and procures these finished products. Examples of the raw materials affected are aluminum cans and plastic bottles used for packaging and high fructose corn syrup used as a product ingredient. Further, the Company is exposed to commodity price risk on crude oil which impacts the Company’s cost of fuel used in the movement and delivery of the Company’s products. The Company participates in commodity hedging and risk mitigation programs administered both by CCBSS and by the Company. In addition, there is no limit on the price The Coca‑Cola Company and other beverage companies can charge for concentrate.

Certain liabilities of the Company, including floating rate debt, retirement benefit obligations and the Company’s pension liability, are subject to risk of changes in both long-term and short-term interest rates.

The Company’s contingent consideration liability resulting from the acquisition of the distribution territories acquired in the System Transformation, excluding territories the Company acquired in an exchange transaction, is subject to risk as a result of changes in the Company’s probability weighted discounted cash flow model, which is based on internal forecasts, and changes in the Company’s WACC, which is derived from market data.

Approximately 15% of the Company’s labor force is covered by collective bargaining agreements. The Company’s collective bargaining agreements, which generally have 3- to 5-year terms, expire at various dates through 2023. Terms and conditions of the new labor union agreements could increase the Company’s exposure to work interruptions or stoppages, as an increased percentage of its workforce is covered by collective bargaining agreements.