A U.S. flag is pictured on a truck loaded with merchandise at the freight shipping company Sotelo, which transports goods between Mexico and the United States, in Ciudad Juarez, Mexico, December 10, 2019. REUTERS/Jose Luis Gonzalez

A trailer loaded with goods is pictured at the freight shipping company Sotelo, which transports goods between Mexico and the United States, in Ciudad Juarez, Mexico, December 10, 2019. REUTERS/Jose Luis Gonzalez

A trailer loaded with goods is pictured at the freight shipping company Sotelo, which transports goods between Mexico and the United States, in Ciudad Juarez, Mexico, December 10, 2019. REUTERS/Jose Luis Gonzalez

A container ship is seen from Victoria on the island of Gozo, Malta December 19, 2018. REUTERS/Darrin Zammit Lupi

Birds fly over docked fishing boats as container ships crossing the Red Sea before entering the Suez Canal, in Ismailia port city, northeast of Cairo, Egypt, Egypt October 31, 2018. REUTERS/Amr Abdallah Dalsh

Birds fly over docked fishing boats while container ships cross the Red Sea before entering the Suez Canal, in Ismailia port city, northeast of Cairo, Egypt, Egypt October 31, 2018. REUTERS/Amr Abdallah Dalsh

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

Shipping freight containers are transported at Dublin Port in Dublin, Ireland, September 24, 2018. REUTERS/Clodagh Kilcoyne

A container ship carrying a light load moves past the stone banks of the partially dried out river Rhine in Rhoendorf near Bonn, Germany, August 17, 2018, as water levels reached a historic low level and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay?

A ship cruises past the stone banks of the partially dried out river Rhine in Rhoendorf near Bonn, Germany, August 17, 2018, as water levels reached a historic low level and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay?

People stroll on a sandbank that is usually covered by the river Rhine as a Dutch tanker ship cruises on the partially dried out waterway in Oberwesel, Germany, August 12, 2018, as water levels remain low due to drought and heatwave hindering freight vessels from sailing fully loaded on the river. Reuters/Wolfgang Rattay

People stroll on a sandbank that is usually covered by the river Rhine as a Dutch tanker ship cruises on the partially dried out waterway in Oberwesel, Germany, August 12, 2018, as water levels remain low due to drought and heatwave hindering freight vessels from sailing fully loaded on the river. Reuters/Wolfgang Rattay

People stroll on a sandbank that is usually covered by the river Rhine as a Dutch tanker ship cruises on the partially dried out waterway in Oberwesel, Germany, August 12, 2018, as water levels remain low due to drought and heatwave hindering freight vessels from sailing fully loaded on the river. Reuters/Wolfgang Rattay

FILE PHOTO Workers watch a grain elevator unload wheat from Canada from the storage of a freight ship at Chiba Kyodo Silo Co. in Chiba east of Tokyo, November 13, 2015. REUTERS/Thomas Peter/File Photo GLOBAL BUSINESS WEEK AHEAD

Transport ships cruise on the partially dried riverbed of the Rhine in Dusseldorf, Germany, July 31, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

Transport ships cruise on the partially dried riverbed of the Rhine in Dusseldorf, Germany, July 31, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

A transport ship cruises on the partially dried riverbed of the Rhine in Dusseldorf, Germany, July 31, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

The riverbed of river Rhine is seen empty as a hotel ship cruises along, in Osterspay, Germany July 30, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

The riverbed of river Rhine is seen empty as a hotel ship cruises along, in Osterspay, Germany July 30, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

The riverbed of river Rhine is seen empty as a hotel ship cruises along, in Osterspay, Germany July 30, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

A cruising ship passes the Loreley rocks amid the Rhine which are visible due to low water level, near Sankt Goarshausen, Germany July 30, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

A freight ship passes the Loreley rocks amid the Rhine which are visible due to low water level, near Sankt Goarshausen, Germany July 30, 2018. Water levels remain low as a drought and heatwave continues and freight vessels cannot sail fully loaded on the river. REUTERS/Wolfgang Rattay

A cargo ship is seen at the coast of Vina del Mar, Chile July 28, 2018. REUTERS/Rodrigo Garrido

A cargo ship is seen at the coast of Vina del Mar, Chile July 28, 2018. REUTERS/Rodrigo Garrido

Construction equipment is seen as container ships cross the Gulf of Suez towards the Red Sea before entering the Suez Canal, in El Ain El Sokhna in Suez, east of Cairo, Egypt April 24, 2017. Picture taken April 24, 2017. REUTERS/Amr Abdallah Dalsh

Container ships cross the Gulf of Suez towards the Red Sea before entering the Suez Canal, in El Ain El Sokhna in Suez, east of Cairo, Egypt April 24, 2017. Picture taken April 24, 2017. REUTERS/Amr Abdallah Dalsh

Freight containers are seen on a container ship at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

A ship freight container transporter is seen at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

Freight containers are seen on a container ship at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

Freight containers are seen on a freight container ship as a worker looks on at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

Workers are seen beside a freight container ship at DP World, Southampton Docks, in Southampton, Britian, March 27, 2017. REUTERS/Eddie Keogh

Freight containers are seen on a freight container ship as a worker looks on at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

Workers are seen beside a freight container ship at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

A freight container ship is seen at DP World, Southampton Docks, in Southampton, Britain, March 27, 2017. REUTERS/Eddie Keogh

A freight container ship is seen at DP World, Southampton Docks, in Southhampton, Britian, March 27, 2017. REUTERS/Eddie Keogh

A freight container ship is seen docked at DP World, Southampton Docks, in Southampton, Britian, March 27, 2017. REUTERS/Eddie Keogh

A container ship is pictured at a loading terminal during snowfall in the harbour of Hamburg, Germany January 13, 2017. REUTERS/Fabian Bimmer

A dock worker walks between empty shipping containers at Peel Ports Liverpool container terminal in Liverpool, Britain December 9, 2016. REUTERS/Phil Noble

A container ship is unloaded at Peel Ports Liverpool container terminal in Liverpool, Britain December 9, 2016. REUTERS/Phil Noble

New container cranes stand on the quayside of Peel Ports Liverpool new L2 terminal in Liverpool, Britain December 9, 2016. REUTERS/Phil Noble

New container cranes stand on the quayside of Peel Ports Liverpool new L2 terminal in Liverpool, Britain December 9, 2016. REUTERS/Phil Noble

A dry bulk ship (R) passes a fisherman off the coast of Johor, Malaysia, November 12, 2016. Picture taken November 12, 2016. REUTERS/Henning Gloystein

A container ship enters the Singapore Strait for the Strait of Malacca, as tourists stand at mainland Asia's southern most point in Johor, Malaysia November 12, 2016. Picture taken November 12, 2016. REUTERS/Henning Gloystein

A port worker releases containers for unloading at the port of Felixstowe, Britain, January 7, 2015. REUTERS/Toby Melville/File Photo

Container boxes are seen at the Yangshan Deep Water Port, part of the Shanghai Free Trade Zone, in Shanghai, China September 24, 2016. Picture taken September 24, 2016. REUTERS/Aly Song/File Photo

Containers are seen unloaded from the Maersk's Triple-E giant container ship Maersk Majestic, one of the world's largest container ships, at the Yangshan Deep Water Port, part of the Shanghai Free Trade Zone, in Shanghai, China, September 24, 2016. Picture taken September 24, 2016. REUTERS/Aly Song

Container boxes are seen at the Yangshan Deep Water Port, part of the Shanghai Free Trade Zone, in Shanghai, China September 24, 2016. Picture taken September 24, 2016. REUTERS/Aly Song/File Photo

Containers are seen unloaded from the Maersk's Triple-E giant container ship Maersk Majestic, one of the world's largest container ships, at the Yangshan Deep Water Port, part of the Shanghai Free Trade Zone, in Shanghai, China, September 24, 2016. Picture taken September 24, 2016. REUTERS/Aly Song

A Hanjin Shipping Co ship is seen stranded outside the Port of Long Beach, California, September 8, 2016. REUTERS/Lucy Nicholson/File Photo

Cargo ships are seen as they sail across the English Channel with the French coast on the horizon, from Dover in Britain, January 9, 2016. REUTERS/Toby Melville/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE Ð SEARCH ÒBUSINESS WEEK AHEAD 3 OCTÓ FOR ALL IMAGES

Hanjin Shipping Co shipping containers are seen at the Port of Long Beach, California, U.S. on September 8, 2016. REUTERS/Lucy Nicholson/File Photo

Birds fly over the toppled shipping containers after Typhoon Meranti made landfall, in Kaohsiung, Taiwan September 15, 2016. REUTERS/Tyrone Siu

Shipping containers toppled by strong winds of typhoon Meranti, are pictured in Kaohsiung, Taiwan September 15, 2016. REUTERS/Tyrone Siu

The container ship Hanjin Greece steams through San Francisco Bay toward the port of Oakland in Oakland, California U.S. September 14, 2016. South Korean shipper Hanjin has filed for bankruptcy and the ship is nearly empty of containers. . REUTERS/Peter Henderson