I need the vulnerabilityand the mitigation for components given below( 1, 2, 3):

1. Colloidal Silicon Dioxide, Western Min Metals (Sc) Corporation, Tianfu Avenue North, Chengdu 610041 Sichuang China comes in 25kg polypropylene bags with PP outside and we would need 1-25 kg bag a week. This would go out through Chengdu Shuangliu International Airport and come into GRU Airport Sao Paulo Guarulhos International and be couriered to us the 24 KM to our plant.
2. Hydroxypropyl Cellulose, Supplier Shanghai Honest Chem Co., Ltd Xuhui District Shanghai 200233 China 25kg/bag Calcium Sulfate, Talc, Supplier Hubei Meikei Gypsum Co., Ltd Jinjiang International City Wuhan 86 China. We would need 1-25 kg bag a week. It would go out through Wuhan Tianhe International Airport and come into GRU Airport Sao Paulo Guarulhos International and be couriered to us the 24 KM to our plant.
3. Magnesium Stearate, Supplier Langhu Chem Co., Ltd Tianjin 3000 China Package:20kg/bag with outside pp weaving bag and inside bis-PVC bag. We would need 1-20 kg bag a week. It would go out through Beijing Dazing International Airportand come into GRU Airport Sao Paulo Guarulhos International and be couriered to us the 24 KM to our plant.

Please detail the vulnerability of supply chain against the following elements:

1. Labour Issues (ie shortages / restrictions / etc)
2. Cost (ie Massive increases / decreases)
3. Natural Disaster
4. War
5. Pandemic
6. Government Stability
7. Trade Relationship

PLEASE FEEL FREE TO CONTACT IF ANY ISSUE.

THANKS!