Note 3 - Major Customers and Suppliers

3 Months Ended

Mar. 31, 2021

Notes to Financial Statements

Major Customers and Suppliers Disclosure [Text Block]

(

3

) MAJOR CUSTOMERS AND SUPPLIERS:

Our revenues are derived primarily from chemical supply and pharmaceutical companies located primarily in the United States. For the

three

months ended

March 31, 2021

five

major customers accounted for

77%

of total revenues. For the

three

months ended

March 31, 2020,

four

major customers accounted for

70%

of total revenues.

Substantially all inventory purchases were from

three

vendors in

2021

and

2020.

These vendors are located primarily outside the United States.

We have

three

sources for our Aquaplex® products. There are multiple sources for our Trappsol® products.

For the

three

months ended

March 31, 2021,

the product mix of our revenues consisted of

1%

biopharmaceuticals,

96%

basic natural and chemically modified cyclodextrins and

3%

cyclodextrin complexes. For the

three

months ended

March 31, 2020

the product mix of our revenues consisted of

9%

biopharmaceuticals and

91%

basic natural and chemically modified cyclodextrins.