We purchase substantial amounts of raw materials, component parts and finished products from outside sources, including international sources, and we manufacture certain of our products outside of the United States. Increases in the cost of the materials we purchase, including as a result of diminished availability, increased tariffs and inflation or unfavorable fluctuations in currency exchange rates have increased and may in the future increase the prices for our products and negatively impact our results of operations and financial position. Further, our production has been and may in the future be impacted if we or our suppliers are unable to procure our requirements for various commodities, including, among others, brass, resins, titanium dioxide and zinc, or if a shortage of these commodities results in significantly increased costs. Energy prices have also increased and, this coupled with potential energy supply shortages, has resulted in increased production and transportation costs, which may continue in the future. In addition, water is a significant component of our architectural coatings products and may be subject to shortages and restrictions on supply in certain regions, due to climate-related and other influences. These factors could adversely impact our results of operations and financial position.
It can be difficult for us to pass our cost increases on to our customers. Our existing arrangements with customers, competitive considerations and customer resistance to price increases may delay or make us unable to adjust selling prices. If we are not able to sufficiently increase the prices of our products or achieve cost savings to offset increased material, production, transportation and labor costs, our results of operations and financial position could be adversely impacted. Increased selling prices for our products have led and may in the future lead to sales declines and loss of market share, particularly if those prices are not competitive. When our material costs decline, we have received and may in the future receive pressure from our customers to reduce our prices. Such reductions have had and could in the future have an adverse impact on our results of operations and financial position.
From time to time we enter into long-term agreements with certain significant suppliers to help ensure continued availability of the commodities we require to produce our products and to establish firm pricing, but these contractual commitments may result in our paying above market prices for commodities during the term of the contract. Occasionally, we may also use derivative instruments, including commodity futures and swaps. This strategy increases the possibility that we may make commitments for these commodities at prices that subsequently exceed their market prices, which has occurred and could occur in the future has had and may in the future have an adverse impact on our results of operations and financial position.