A migrant worker walks among foundation pilings to spray oil on stagnant water to prevent mosquito breeding at a construction site that has stopped work since the "circuit breaker" measures to curb the coronavirus disease (COVID-19) outbreak in Singapore April 20, 2020. REUTERS/Edgar Su 

A construction site is seen in the town of Soussian in Aleppo countryside, Syria September 23, 2018. Picture taken September 23, 2018. REUTERS/Khalil Ashawi 

Construction work can be seen on the Israeli side of the border with the northern Gaza Strip, Israel January 8, 2018. Picture taken January 8, 2018. REUTERS/Amir Cohen 

A labourer works at a construction site of a bridge on the sea in Colombo, Sri Lanka January 3, 2018. REUTERS/Dinuka Liyanawatte 

Dubai's ruler Sheikh Mohammed bin Rashid al-Maktoum (C) lays foundation stone for a solar plant for generating clean energy in Dubai, November 28, 2015. REUTERS/Stringer TPX IMAGES OF THE DAY

A farmer takes pictures with his mobile phone at the site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

A general view of the site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

Farmers stand at the site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: TRANSPORT BUSINESS CONSTRUCTION CIVIL UNREST ENVIRONMENT) 

Lina Lopez, a resident, walks near the site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

A farmer cycles near the site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

Farmers stand near earthmovers at a construction site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

A farmer speaks to the media near earthmovers at a construction site where a new airport will be built at the town of San Salvador Atenco, near Mexico City September 9, 2014. Just one week after the Mexican government unveiled plans for a new airport in Mexico City to cater for up to 120 million passengers a year, opposition to the project is mounting with local residents up in arms over the $9 billion dollar project. The groundwork for the massive airport and its six runways has already begun in San Salvador Atenco, located in the capital's greater metropolitan area. Residents say the billion-dollar airport will have an adverse affect on the local environment and access to water from wells that are used on local farms. Picture taken on September 9. REUTERS/Henry Romero (MEXICO - Tags: BUSINESS CONSTRUCTION CIVIL UNREST TRANSPORT ENVIRONMENT) 

Workers drop a metal beam into place as they build the reverse osmosis pressure vessel racks as construction continues on the Western Hemisphere's largest seawater desalination plant in Carlsbad, California January 8, 2014. The one billion dollar project is expected to produce 50 million gallons of drinking water a day for San Diego County.
REUTERS/Mike Blake (UNITED STATES - Tags: ENVIRONMENT SCIENCE TECHNOLOGY BUSINESS CONSTRUCTION TPX IMAGES OF THE DAY) 

Mohamed Atyan, 68, known as the "Father of Rebels", who said one of his sons was killed during the Egyptian uprising, sits with workers carrying out groundwork for the construction of a garden at Tahrir Square, which had been the epicentre of the country's 2011 uprising, in Cairo September 26, 2013. The sign reads, "The January revolution was against the abuse of power, and the June revolution against the exploitation of religion". REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

Torn posters of ousted Egyptian President Mohamed Mursi are seen on a wall at Tahrir Square in Cairo September 26, 2013. On Thursday, the groundwork for the construction of a garden was begun at the square. The poster reads, "To be on trial... No reconciliation without justice, no justice without retribution, no punishment without trial". REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

Mohamed Atyan, 68, known as the "Father of Rebels", who said one of his sons was killed during the Egyptian uprising, stands in front of workers carrying out groundwork for the construction of a garden at Tahrir Square, which had been the epicentre of the country's 2011 uprising, in Cairo September 26, 2013. The sign reads, "The January revolution was against the abuse of power, and the June revolution against the exploitation of religion". REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

Mohamed Atyan, 68, known as the "Father of Rebels", who said one of his sons was killed during the Egyptian uprising, stands at Tahrir Square, which had been the epicentre of the country's 2011 uprising, in Cairo September 26, 2013. On Thursday, the groundwork for the construction of a garden was begun at the square. The sign reads, "The January revolution was against the abuse of power, and the June revolution against the exploitation of religion". REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

Workers wash their hands as they begin the groundwork to construct a garden at Tahrir Square, which had been the epicentre of the country's 2011 uprising, in Cairo September 26, 2013. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: CONSTRUCTION CIVIL UNREST SOCIETY) 

A worker arranges steel structures at a construction site of an apartment in Hanoi June 14, 2013. REUTERS/Kham (VIETNAM - Tags: BUSINESS CONSTRUCTION EMPLOYMENT REAL ESTATE TPX IMAGES OF THE DAY) 

A sign is seen outside a home devastated by fire and the effects of Hurricane Sandy in the Breezy Point section of the Queens borough in New York January 15, 2013. Republicans cleared the way for House action Tuesday on Hurricane Sandy disaster aid after the leadership stepped in to pare back scores of amendments that could have been problematic to passage. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENVIRONMENT DISASTER POLITICS) 

A worker walks at the work site of the Parque Olimpico Rio 2016 (Rio 2016 Olympic Park), which is being constructed over the former Jacarepagua race track, during a press tour in Rio de Janeiro November 20, 2012. Members of Organising Committee of the London 2012 Olympic Games are in Rio to attend the International Olympic Committee (IOC) official debriefing of the London 2012 games with Rio 2016 Olympic Games Organising Committee. REUTERS/Ricardo Moraes (BRAZIL - Tags: SPORT OLYMPICS BUSINESS CONSTRUCTION) 

Workers are seen at the Chinese-owned Great Nile Construction Company building site in Juba October 4, 2012. Picture taken October 4, 2012. To match Special Report SOUTHSUDAN-CHINESE-OIL REUTERS/Adriane Ohanesian (SOUTH SUDAN - Tags: BUSINESS CONSTRUCTION POLITICS ENERGY) 

A sign with a photo nailed to one of several pilings, all that remains of a house that once stood on this beach-front property, is pictured in Bay Head, New Jersey, Nov. 6, 2012 in the aftermath of Hurricane Sandy. REUTERS/Tom Mihalek (UNITED STATES - Tags: DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) 

A worker smokes on the steel frame at a construction site in Hefei, Anhui province July 7, 2012. China must roll out new measures to combat speculative housing demand as risks of a home price rebound rise, the official People's Daily said in a commentary published on Wednesday. REUTERS/Stringer (CHINA - Tags: REAL ESTATE BUSINESS TPX IMAGES OF THE DAY EMPLOYMENT) 

Iron workers work at the site of Four World Trade Center in New York, June 25, 2012. REUTERS/Keith Bedford (UNITED STATES - Tags: SOCIETY) 

A farmer works on building the roof of a shelter for animals, at a farm on the outskirts of Havana December 12, 2011. REUTERS/Desmond Boylan (CUBA - Tags: SOCIETY AGRICULTURE) 

Construction workers work on the framework for a single family home currently under construction in Los Angeles, California October 18, 2011. U.S. housing starts surged in September at their fastest annual pace in 17 months on a big increase in groundbreaking for multi-family units, while permits for future construction fell, a government report showed on Wednesday. The Commerce Department said housing starts increased 15.0 percent to a seasonally-adjusted annual rate of 658,000 units. REUTERS/Fred Prouser (UNITED STATES - Tags: BUSINESS CONSTRUCTION REAL ESTATE) 

The framework for a single family home currently under construction is seen in Los Angeles, California October 18, 2011. U.S. housing starts surged in September at their fastest annual pace in 17 months on a big increase in groundbreaking for multi-family units, while permits for future construction fell, a government report showed on Wednesday. The Commerce Department said housing starts increased 15.0 percent to a seasonally-adjusted annual rate of 658,000 units. REUTERS/Fred Prouser (UNITED STATES - Tags: BUSINESS CONSTRUCTION REAL ESTATE) 

The foundation of a new home is shown in a new subdivision under construction in Carlsbad, California September 19, 2011. U.S. homebuilder sentiment dipped in September with an industry index mired in a low range as the housing market continues to struggle, the National Association of Home Builders said on Monday. REUTERS/Mike Blake (UNITED STATES) 

The foundation of a residential home awaits construction at a subdivision in Carlsbad, California September 19, 2011. U.S. homebuilder sentiment dipped in September with an industry index mired in a low range as the housing market continues to struggle, the National Association of Home Builders said on Monday. REUTERS/Mike Blake (UNITED STATES - Tags: BUSINESS EMPLOYMENT CONSTRUCTION REAL ESTATE) 

A man builds a house, displaced by heavy floods for almost a year, while taking refuge at a camp in Charsadda, located in Pakistan's Khyber Pakhtunkhwa province July 19, 2011. Up to five million people in Pakistan are at risk from floods this year, partly due to poor reconstruction and the inadequate rehabilitation of survivors who are still reeling from last year's epic deluge, the United Nations said. REUTERS/Fayaz Aziz (PAKISTAN - Tags: POLITICS CIVIL UNREST DISASTER ENVIRONMENT) 

An African man, who crossed illegally into Israel from Egypt, sits on the ground after being detained by Israel's military (not seen) some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israeli bulldozers began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS IMAGES OF THE DAY SOCIETY) 

A group of African men sit on the ground after being detained by Israel's military (not seen) for crossing illegally into Israel from Egypt, some 50 kilometres (31 miles) north of the southern city of Eilat, November 22, 2010. Israeli bulldozers began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS) 

An African man sits on the ground after being detained by Israel's military for crossing illegally into Israel from Egypt, some 50 kilometres (31 miles) north of the southern city of Eilat, November 22, 2010. Israeli bulldozers began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS) 

An African man sits on the ground after being detained by Israel's military for crossing illegally into Israel from Egypt, some 50 kilometres (31 miles) north of the southern city of Eilat, November 22, 2010. Israeli bulldozers began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS MILITARY) 

Construction vehicles begin building a barrier some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israel began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS IMAGES OF THE DAY) 

Construction vehicles begin building a barrier some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israel began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS) 

Construction vehicles begin building a barrier some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israel began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS) 

A bulldozer begins construction of a barrier some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israel began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS) 

Students of Chile's University build a refugee camp near Constitucion, south of Santiago, March 9, 2010. The February 27 quake and the giant waves destroyed hundreds of thousands of homes, wrecked bridges and roads and cracked modern buildings in half in the capital, Santiago. REUTERS/David Mercado (CHILE - Tags: DISASTER EDUCATION ENVIRONMENT SOCIETY IMAGES OF THE DAY) 

Indonesian workers walk at a construction site in Banda Aceh December 4, 2009. The senior deputy governor of Indonesia's central bank said on Wednesday it was "appropriate" for the overnight benchmark rate to remain at 6.5 percent next year, given an inflation forecast of 5-5.5 percent in 2010. REUTERS/Beawiharta (INDONESIA BUSINESS SOCIETY) 

A general view of the Marina Bay Sands casino resort under construction in Singapore August 1, 2009. REUTERS/Tim Chong (SINGAPORE CITYSCAPE BUSINESS CONSTRUCTION SOCIETY) 

Two workers look out from the shell of a new building at a construction site in the city of Chengdu in Sichuan Province July 23, 2009. Chinese Foreign Minister Yang Jiechi on Thursday expressed confidence that the country's economy could reach an eight percent growth target this year. China's economy gathered momentum in the second quarter thanks to massive fiscal and monetary stimulus, leaving the government's full-year growth target of 8 percent within reach. REUTERS/David Gray (CHINA BUSINESS EMPLOYMENT SOCIETY) 

Construction cranes are seen near the almost completed towers of the Marina Bay Sands Casino in Singapore July 8, 2009. Las Vegas Sands, the world's largest casino firm by market value, said on Wednesday the performance of its Las Vegas business has exceeded forecasts. REUTERS/Tim Chong (SINGAPORE BUSINESS CONSTRUCTION) 

A Delhi Metro Rail Corporation employee works at the final tunnelling breakthrough of Qutub Minar and Saket stations in New Delhi June 17, 2009. Delhi Metro engineers used the New Austrian Tunnelling Method (NATM) for the first time on 'soft' soil since the NATM was originally conducted in hard rock conditions and tunnel construction in softer soil can be tricky as the soil has to be immediately cemented and strengthened to prevent collapse, a media release said. REUTERS/Adnan Abidi (INDIA TRANSPORT BUSINESS) 

Labourers work at a construction site for the controversial Israeli barrier in Shuafat in the West Bank near Jerusalem June 8, 2009. The United States said on Monday it would make a new push for Israeli-Palestinian talks and U.S. envoy George Mitchell, en route to the region, hoped to lay the groundwork. REUTERS/Baz Ratner (WEST BANK POLITICS BUSINESS CONSTRUCTION) 

A man works on a framework at a construction site in Seoul March 18, 2009. South Korea lost the most jobs in more than five years in February, fresh evidence the global downturn is dragging Asia's fourth-largest economy into its first recession in more than a decade. REUTERS/Lee Jae-Won (SOUTH KOREA BUSINESS) 

Labourers work at a construction site on the outskirts of the southern Indian city of Hyderabad November 10, 2008. REUTERS/Krishnendu Halder (INDIA) 

A work puts up scaffolds at a construction site in Beijing, November 10, 2008. China pitched in nearly $600 billion to the global effort to avoid the worst economic downturn in decades, while grim Japanese data on Monday offered more proof of the damage caused by the global financial crisis. REUTERS/Jason Lee (CHINA) 

Labourers erect scaffolding at a construction site in the southern Indian city of Hyderabad November 4, 2008. India will take steps to boost industrial production with a specific focus on reviving the housing and construction sectors, a top government official said on Monday. REUTERS/Krishnendu Halder (INDIA) 

A labourer walks past reinforcement bars at a construction site in Nanjing, Jiangsu province, May 5, 2008. As China's steel industry faces rising costs and intensifying competition, private-sector steel mills with better profit margins than their state-owned rivals look well placed to benefit from the shakeout. REUTERS/Sean Yong (CHINA) 

Construction workers attach a granite block to a crane in Singapore March 5, 2008. Sembawang Engineers & Constructors, a unit of India's Punj Lloyd, said on Wednesday that its orderbook tripled from a year ago on a construction boom in Singapore, and expects continued growth due to massive infrastructure spending in the city-state. REUTERS/Vivek Prakash (SINGAPORE) 

Labourers work at an under-construction chemical factory in Huai'an, Jiangsu province, March 2, 2008. REUTERS/Patty Chen (CHINA) 

Labourers work on Sarafiya bridge, which was destroyed in a truck bomb attack by insurgents last year, in Baghdad February 17, 2008. Picture taken February 17, 2008. REUTERS/Mohammed Ameen (IRAQ) 

Rapper Snoop Dogg performs during the J.A.M Awards concert in honor of the late hip-hop icon Jam Master Jay and to benefit his Foundation for Music in New York November 29, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

A general view shows a construction site at Marina South, in the general vicinity of the Marina Bay Sands Casino to be opened in 2008, with Singapore's skyline in the background August 29, 2007. REUTERS/Vivek Prakash (SINGAPORE) 

A labourer walks on the frame of a structure under construction in Nanjing, in east China's Jiangsu province August 28, 2007. China's annual economic growth rate, as measured by Goldman Sachs's China Activity index, picked up to 12.7 percent in July from 12.6 percent in June, the bank said. REUTERS/Sean Yong (CHINA) 

Labourers work at a building site in Shanghai June 7, 2007. China's economy probably kept up a rapid pace in May, with strong growth in everything from investment to retail sales fuelling inflationary pressures. REUTERS/Aly Song (CHINA) 

A woman labourer works at a construction site in the northern Indian city of Chandigarh May 1, 2007. REUTERS/Ajay Verma (INDIA)