We conduct business in many countries, including emerging markets in Asia, Latin America, and Eastern Europe, and these operations represent a significant portion of our sales and earnings. In addition to the currency risks discussed below, our international operations pose other potential substantial risks and problems for us, including the following:
- current reduced market demand in our core segments in China and the current economic conditions in this region;- local tariffs and trade barriers;- additions or revisions to a country's legal and regulatory requirements;- difficulties in staffing and managing local operations and/or mandatory salary increases;- credit risks arising from financial difficulties facing local customers and distributors;- difficulties in protecting intellectual property;- nationalization of private enterprises which may result in the confiscation of assets, as we hold significant assets around the world in the form of property, plant, and equipment, inventory, and accounts receivable, as well as $19.8 million of cash at December 31, 2023 in our Chinese subsidiaries;- restrictions on investments and/or limitations regarding foreign ownership;- adverse tax consequences, including tax disputes and imposition or increase of withholding and other taxes on remittances and other payments by subsidiaries;- domestic purchasing requirements that could favor local competition;- other uncertain local economic, political, and social conditions, including inflation, hyper-inflation, and other decreases in purchasing power, or periods of low or no productivity growth;- reduced foreign investment and/or demand;- credit tightening or reduction in credit availability for local customers; and - emerging markets can be volatile and change quickly.
China represents a significant portion of our business and financial results and has an important role in our global supply chain. For example, our Chinese operations accounted for 19% of sales to external customers, 32% of total segment profit, and approximately 34% of our global production during 2023. In recent years, geopolitical tensions have increased, particularly between the United States and China. Among other issues, these geopolitical topics have resulted in increased tariffs and trade restrictions. The Chinese government and other governments have also increased their focus on domestic purchasing requirements. In addition, as a result of the significant supply chain disruptions during the COVID-19 pandemic, many companies are seeking increased flexibility in their supply chains that may result in reduced foreign investment in China. The Chinese economy also has recently slowed and is impacted by challenges with the country's real estate market that affects domestic consumption and has historically been a source of funds for government stimulus. These risks could lead to reduced sales in China, as well as higher costs.
After benefiting from significant growth in 2022 and 2021, market demand in China declined significantly during the second half of 2023, resulting in a 10% decrease in local currency net sales during 2023. We also expect net sales in China to decrease during the first half of 2024. Our business is significantly impacted by market demand in our core segments of pharma/biopharmaceutical, food manufacturing, and chemical. Market conditions also can be volatile and change quickly, as experienced in 2023.
We must also comply with regulations regarding the conversion and repatriation of funds earned in local currencies. For example, we need government approval to convert earnings from our operations in China into other currencies and to repatriate these funds. If we cannot comply with these or other applicable regulations or these regulations are amended to make it more difficult to repatriate the funds, we may face increased difficulties in using cash generated in China.
We are required to comply with various import, export control, and economic sanctions laws, which may affect our transactions with certain customers, business partners, and other persons, including in certain cases dealings with or between our employees and subsidiaries. We address below the topic of economic sanctions laws related to Russia's invasion of Ukraine, which commenced in February 2022. In certain circumstances, export control and economic sanctions regulations may prohibit the export of certain products, services, and technologies, and in other circumstances, we may be required to obtain an export license before exporting a controlled item. Failure to comply with any regulations and sanctions could result in civil and criminal actions, monetary and non-monetary penalties, disruptions to our business, limitations on our ability to import and export products and services, and damage to our reputation.
In response to Russia's invasion of Ukraine in 2022, and as referenced above, the U.S., the European Union, and certain other countries imposed economic sanctions on Russian financial institutions, businesses in Russia, and Russian interests and individuals, and the Russian government implemented sanctions and regulations in response. We continue to monitor the ongoing developments related to Ukraine, as well as the status of all applicable sanctions.
We have remained in close contact with our employees in Ukraine and have provided financial assistance and supplies to them. We suspended all shipments to Russia since the beginning of the invasion in February 2022. For historical reference, in 2021, approximately 1% of our net sales were in Russia and Ukraine, and we had an immaterial amount of assets and liabilities in both countries as of December 31, 2023, 2022, and 2021. We also do not have manufacturing in Russia or Ukraine.
Due to the impact of reduced energy supplies from Russia, the Council of the European Union (EU Council) proposed that all European member states extend their voluntary 15% reduction target in gas consumption compared to their average consumption for the five years ended March 31, 2022. The extended reduction timeframe commenced April 1, 2023 and is expected to continue through March 31, 2024. Accordingly, the availability and cost of energy may be impacted.
While we do not conduct manufacturing operations in the Middle East, we do sell products into the region, which represents less than 1% of total sales. Our customer base and demand in and nearby the region and worldwide may be affected by the Israel-Hamas war and the effects it is having in the region. In addition, the recent Houthi attacks on commercial shipping vessels in the Red Sea and Suez Canal, which are related to the Israel-Hamas war, have disrupted global supply chains, resulting in increased shipping costs, freight surcharges, shipment delays, reduced shipping capacity, and other significant supply chain impacts to companies that could negatively impact our financial results. These events may also negatively impact our customers which could result in reduced sales. The ongoing and potential future impacts of escalating global conflicts, including those between Russia and Ukraine and the Israel-Hamas war, have heightened global economic and geopolitical uncertainty.
While it is difficult to estimate the impact of the ongoing Ukraine invasion and the Israel-Hamas war on the global economy, including increased inflation, higher energy and transportation costs, global supply chain disruptions, and potential energy shortages, the invasion of Ukraine and the Israel-Hamas war could adversely impact our financial results and present several risks to our business. Also, uncertainties related to these conflicts exist, and the resulting impact to the global economy and market conditions can change quickly.
We continue to monitor the ongoing developments related to these conflicts, as well as the advent of any applicable sanctions.