Some states have some of the largest cbd imports, while others are struggling to meet consumer demand.
In January, Texas said it had imported almost 400,000 grams of the drug from China, the most in the country.
It’s been selling the drug in the United States since at least 2008.
The state’s top health official, Dr. John D. Henson, said he had seen no shortage of demand for cbb in recent years.
“Our concern is that we are not seeing the supply that we want,” he said at a news conference last week.
The U.S. Customs and Border Protection (CBP) said in December it had seized 1.6 million cbd shipments from China in 2017.
Its share of the global market for cbf is about 4.4 percent, according to data compiled by Bloomberg.
In the U.K., where cbd exports are banned, the drug was sold in some stores on Dec. 3, the company said in a statement.
It added that cbd was available at a number of retailers and was available in all areas.
The drug was also available in New York and California.
Cbd, which was first synthesized in China in the 1950s, has become popular with younger people in Asia, particularly in China and Southeast Asia.
In April, a U.N. panel said it could raise concerns about the safety of cbd and called for an end to its use in developing countries.
China, where the drug is manufactured, has also banned imports, and in 2018 a ban was lifted for some imports of cbb.
A U.L.M. study last month said cbd accounted for up to 90 percent of the trade in the drug, which has a street value of about $3.3 billion.