SINGAPORE/BEIJING — China has asked trading firms and food processors to boost inventories of grains and oilseeds as a possible second wave of coronavirus cases and worsening infection rates elsewhere raise concerns about global supply lines.

Both state-run and private grain traders as well as food producers were urged to procure higher volumes of soybeans, soyoil and corn during calls with China鈥檚 Ministry of Commerce in recent days, three trade sources told Reuters.

鈥淭here is a possibility of a breakdown in supply pipelines due to the coronavirus infections. For example, a port of origin or destination might shut down,鈥 said a senior trader at one of China鈥檚 leading food processors, which was on a call last week with authorities to discuss purchases.

鈥淭hey have advised us to increase stocks, keep supplies higher than we usually have. Things are not looking good in Brazil,鈥 he added, referring to China鈥檚 main supplier of soybeans and a key meat exporter where the number of coronavirus cases has surpassed those in Spain and Italy.

A second source in China who was briefed by a person who attended one of the meetings said China鈥檚 Ministry of Commerce met with some state companies on Tuesday to discuss how to guarantee supplies during the pandemic.

鈥淥ne of the main concerns is how the epidemic in South America might impact supplies (of beans) to China,鈥 the source said.

China鈥檚 Ministry of Commerce did not respond to a fax seeking comments on plans to increase food stocks.

Brazilian shipments of soybeans were delayed in March and April due to a combination of heavy rains and reduced manpower as coronavirus containment measures took effect, leading to a plunge in Chinese soy inventories to record lows.

Arrivals from Brazil have since rebounded, but authorities remain wary of fresh disruptions.

China鈥檚 state-owned agriculture conglomerate COFCO and grain stockpiler Sinograin have been stepping up purchases of US soybeans and corn in recent weeks.

Chinese importers bought at least four cargoes, or about 240,000 tonnes, of US soybeans on Monday for shipment beginning in July, two traders familiar with the deals said.

Beijing has also increased its allocations of crop import quotas to major grain buyers, paving the way for further potential purchases.

China is under pressure to buy more US farm products under a trade deal signed between Washington and Beijing in January, and trade sources expect more of China鈥檚 crops to come from the United States once the South American export season ends and the North American harvests approach in the autumn.

鈥淭he effort is to build supplies, not just from Brazil, but from all over,鈥 said the senior trader at the food processing company. 鈥淯S beans are looking attractive from September onwards,鈥 he added.

US crop export sales data show that Chinese buyers have accelerated soybean purchases of the upcoming crop, with new crop bookings of 374,000 tonnes already registered, compared with an average of 60,000 tonnes for this period since 2016.

China is also a top meat importer and is facing a large domestic supply shortfall following an outbreak of African swine fever which has decimated its pig herd, the world鈥檚 largest.

Imports from the United States — the top global pork exporter — had been expected to surge as a result, but widespread COVID-19 outbreaks at US slaughterhouses and processing plants have cut national meat output.

China has booked a record volume of US pork shipments already this year, raising concerns about fresh tensions between the countries if US meat production problems curb domestic supplies at a time when shipments to China remain strong. — Reuters