If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.


Pharmaceutical Chemicals


Novel coronavirus puts drug chemical industry on alert

Firms signal preparedness, but warn that prolonged plant closures and travel restrictions may cause significant disruptions

by Rick Mullin
February 4, 2020


Major drug companies have issued statements in recent days assuring the public that their inventories are adequate in the face of supply chain threats stemming from China’s coronavirus outbreak. Suppliers of active pharmaceutical ingredients (APIs) are also assuring customers that they are prepared for temporary interruption in the supply of key ingredients from Chinese firms.

Key supplier
Chinese plants make up 13% of all US-registered drug chemical facilities.

Source: US Food and Drug Administration, August 2019.
Chinese plants make up 13% of all US-registered drug chemical facilities.

Source: US Food and Drug Administration, August 2019.
A pie chart of sources of active pharmaceutical ingredients supplied to the US.

However, API makers in Europe and the US warn that supply disruptions could result from a protracted delay in restarting production at plants closed in recent weeks by the Chinese government or prolonged transportation restrictions.

James Bruno, president of the consulting firm Chemical and Pharmaceutical Solutions, notes that travel restrictions are already interrupting business with Chinese suppliers. “First of all, nobody is going to be able to get to China,” he says, “so all the audits are going to be canceled.”

Bruno adds that the travel restrictions will prolong plant closures stemming from Chinese New Year celebrations, which began on Jan. 25 and are scheduled to run to Feb. 8. “These guys have gone home and may not be able to get back to where they were working,” he says.

The initial quarantine of Wuhan, the city first impacted by the virus, has broadened to include travel bans in other major cities, Bruno notes. “It’s not just Wuhan. It’s China.”

Support nonprofit science journalism
C&EN has made this story and all of its coverage of the coronavirus epidemic freely available during the outbreak to keep the public informed. To support us:
Donate Join Subscribe

Bruno says he has received calls from clients asking where they might find alternative sources of materials purchased from China. “The good news is that most of the people dealing with China tend to have inventory,” he says. “But if this doesn’t straighten out in the next 3 months, we could have some real problems with supply disruption.”

Guy Villax, CEO of the pharmaceutical chemical maker Hovione, says 50 people did not show up for work on Feb. 4 at the company’s plant in Macao, which employs 200. “Twenty-five of them live across the border in China, and China’s instructions are to stay at home,” he says. “But the issue is not whether the plant is producing; the real question is whether there will be transport to move goods around. Right now the head of the plant doesn’t know if he’ll get supplies from China.”

Finding alternative suppliers would be impractical, Villax adds, given the time it takes to establish a new supplier and the likelihood that the disruption will last only a matter of months.

The Italian drug chemical maker Flamma sent customers a statement on Feb. 1 explaining that Chinese authorities told its plant in Dalian, nearly 1,400 km from Wuhan, to remain shut down past the normal New Year holiday closure. The company also warned that isolation measures and restrictions on air travel and transportation will likely impact supply logistics beyond the extended holiday shutdown.

“As things continue, we will probably consider moving production to Italy and possibly to the US,” says Kenneth N. Drew, Flamma’s senior director of sales and business development for North America. “It’s a very fluid situation.”

It’s not just Wuhan. It’s China.”
James Bruno, president, Chemical and Pharmaceutical Solutions

Asymchem, a pharmaceutical chemical manufacturer in Tianjin, China, approximately 1,160 km from Wuhan, also notified customers of contingencies related to the virus outbreak. The company told customers on Jan. 30 that it had pre-stocked materials to support production for at least a month and that it has not experienced delays on projects. Asymchem reports that 45 employees, about 1% of its workforce, were quarantined by authorities after traveling during the holiday. The firm says it expects its plants to open on Feb. 10.

“We will closely monitor the situation as it evolves, and take action proactively for assurance of supply,” Asymchem Senior Vice President Elut Hsu says in the letter.

Sources agree that the full impact of prolonged restrictions in China is difficult to gauge. According to a recent report by the US Food and Drug Administration, China is home to approximately 13% of the 1,788 facilities that manufacture APIs for drugs marketed in the US.

Given the reassuring reports from drug companies and API producers, there is no reason to fear a significant disruption in the pharmaceutical supply chain, says industry consultant Steven Lynn, a former head of the FDA’s quality compliance office.

“Fearmongering is not something we should be doing,” he says. But API suppliers should take advantage of a short-term disruption to review supply chain and logistics vulnerabilities. “Churchill had a good quote,” Lynn says: “ ‘Never let a good crisis go to waste.’ ”


On Feb. 11, 2020, the Coronavirus Study Group of the International Committee on Taxonomy of Viruses officially named the novel coronavirus "severe acute respiratory syndrome coronavirus 2" (SARS-CoV-2). The temporary name for the virus was 2019-nCoV.



This article has been sent to the following recipient:

Chemistry matters. Join us to get the news you need.