Due to the recent port strike in South Africa, which seriously affected the operation of many major South African ports, the bulk transportation of South Africa's main export products such as iron ore, coal, chromium, manganese, and agricultural products was threatened.

In addition, northern China was affected by the epidemic in October, which further affected production levels.

Judging from the recent situation, futures prices have risen continuously due to concerns about raw material supply and the sentiment that the increase in stainless steel production was less than expected.