In 2023, the re-import of Vitamin C to China was reported at a certain baseline value. From the provided forecast, there is a steady year-on-year increase anticipated from 2024 to 2028. The percentage growth between consecutive years highlights a gradual escalation, suggesting an incrementally growing demand or market need for Vitamin C within China.

Future trends to watch for include:

Potential shifts in global supply and demand dynamics for Vitamin C that could impact China's import levels.
Regulatory changes within China affecting import duties or health guidelines.
Advancements in synthetic or natural vitamin sources that could alter consumer preferences.