1. Overall Trade Performance: China has consistently been one of the world's largest exporters and importers. In 2021, despite the global challenges posed by the COVID-19 pandemic, China's foreign trade demonstrated resilience and showed signs of recovery. The country's import and export activities rebounded after a temporary decline in early 2020.

2. Export Sector: China is known for its strong manufacturing capabilities and export-oriented industries. Key export sectors include electronics, machinery, textiles, automotive products, and consumer goods. In 2021, China's exports were likely driven by global demand for electronics, medical supplies, and personal protective equipment (PPE) amid the pandemic.

3. Import Sector: China's imports consist of various goods, including natural resources, commodities, machinery, and high-tech products. The country's growing middle class has also fueled demand for imported consumer goods. In recent years, China has been working towards rebalancing its economy, promoting domestic consumption, and reducing reliance on investment and exports.

4. Trade Partners: China has a vast network of trading partners across the globe. It is a major trading partner for countries in Asia, Europe, Africa, and the Americas. In terms of exports, the United States, the European Union, and ASEAN countries have traditionally been significant destinations for Chinese goods. Meanwhile, China's imports include commodities from countries such as Australia, Brazil, and African nations.

5. Trade Surplus: China has consistently maintained a trade surplus, meaning that its exports exceed its imports. This surplus has contributed to China's foreign exchange reserves and influenced its economic policies. However, it's worth noting that in recent years, China has taken steps to address trade imbalances and promote more balanced trade relations with its partners.

6. Belt and Road Initiative (BRI): China's BRI, launched in 2013, aims to enhance global connectivity and trade through infrastructure development and improved trade links. The initiative has had a significant impact on China's import and export patterns, with increased trade volumes and investments in BRI countries along various economic corridors.

It is important to refer to official sources, such as the General Administration of Customs of the People's Republic of China, for the most accurate and detailed import and export data for China in 2021.