King Frederik of Denmark and King Willem-Alexander of the Netherlands break into laughter on visits to Lyngby and Copenhagen

King Willem-Alexander of the Netherlands and King Frederik of Denmark made a joint visit to a high-tech company today. 

The duo appeared to be in high spirits as they arrived at the Topsoe headquarters in Lyngby, Denmark. 

It is a high-tech company specialising in decarbonisation technologies - the removal of carbon dioxide into the atmosphere - and solutions for transition into green energy. 

King Willem-Alexander and King Frederik appeared to share a joke as the pair smiled while they looked around the building. 

The Kings arrived sporting highly polished shoes and similar suits which were both navy blue, with Willem-Alexander donning a crisp white shirt and sky blue patterned tie.

King Willem-Alexander (L) and King Frederik (R) appeared to be in high spirits as they arrived at the Topsoe headquarters in Lyngby, Denmark

King Willem-Alexander (L) and King Frederik (R) appeared to be in high spirits as they arrived at the Topsoe headquarters in Lyngby, Denmark

Whereas King Frederik arrived dressed in a powder blue shirt and sapphire-coloured patterned tie.

While looking around Topsoe, the monarchs wore white lab coats over their suits, complete with protective goggles.

They listened to scientists from the company, which was founded in 1940 and has more than 2,800 employees worldwide. 

King Willem-Alexander is currently in Denmark to discuss green initiatives and sustainability, along with expanding the cooperation between countries in the realm of hydrogen infrastructure.

The Dutch monarch is due to jet off to Norway after his visit to Denmark, accompanied by Sophie Hermans, Minister of Climate Policy and Green Growth.

Willem-Alexander and Frederik were given a tour of Topsoe, where they learnt about a new effective form of electrolysis, which refers to the process of using electricity to split water into hydrogen and oxygen

Following the visit, the pair attended a conference at Danish Industry in Copenhagen, where King Willem-Alexander gave a speech. 

They will then move on to a cruise departing from the famous Nyhavn spot, famed for its colourful and characterful houses.

King Willem-Alexander and King Frederik appeared to share a joke as the pair smiled while they looked around the building

King Willem-Alexander and King Frederik appeared to share a joke as the pair smiled while they looked around the building

King Willem-Alexander of the Netherlands and King Frederik of Denmark pose for a photo at Danish Industry (DI) in Copenhagen

King Willem-Alexander of the Netherlands and King Frederik of Denmark pose for a photo at Danish Industry (DI) in Copenhagen

Topsoe is a high-tech company specialising in decarbonisation technologies and solutions for transition into green energy

Topsoe is a high-tech company specialising in decarbonisation technologies and solutions for transition into green energy

King Willem-Alexander will depart Denmark and fly to greater Bergen and Oslo in Norway on Thursday

King Willem-Alexander will depart Denmark and fly to greater Bergen and Oslo in Norway on Thursday

King Frederik donned goggles and a lab coat during the visit

King Frederik donned goggles and a lab coat during the visit

King Frederik is handed an item by a scientist at Topsoe today

King Frederik is handed an item by a scientist at Topsoe today

King Willem-Alexander is currently in Denmark to discuss green initiatives and sustainability

King Willem-Alexander is currently in Denmark to discuss green initiatives and sustainability

During the boat trip, King Willem-Alexander will speak with stakeholders about the decarbonisation of ports and the maritime sector.

He will then depart Denmark and fly to greater Bergen and Oslo in Norway on Thursday, where he will meet Crown Prince Haakon.

This comes as Frederik and his wife Queen Mary put on a united front as they announced a major rebrand of their Crown Prince Couple's Awards last week - one year after the monarch's 'affair' scandal. 

The couple - who have been plagued by rumours of marital strife over the past year - attended the annual awards, which celebrate 'outstanding performance and innovative thinking' in the arts, culture and social work sectors, in Copenhagen.

King Willem-Alexander of the Netherlands speaks during his visit to the Danish Industry in Copenhagen

King Willem-Alexander of the Netherlands speaks during his visit to the Danish Industry in Copenhagen

The Kings arrived sporting highly polished shoes and similar suits which were both navy blue

The Kings arrived sporting highly polished shoes and similar suits which were both navy blue

They listened to scientists from the company, which was founded in 1940 and has more than 2,800 employees worldwide

They listened to scientists from the company, which was founded in 1940 and has more than 2,800 employees worldwide

The two Kings seemed to listen intently to the scientists speaking at the tour today

The two Kings seemed to listen intently to the scientists speaking at the tour today

Following a series of solo engagements this week, Queen Mary posed for photos with her husband on the red carpet at the VEGA concert hall - before later taking to the stage with him to announce a new chapter in the awards' history.

During the evening, the royal couple took to the stage to present awards live on television and also spent time speaking to winners and runners up afterwards.

The awards were first established in 2004 as a wedding gift to Frederik and Mary from the Bikuben Foundation - an independent organisation that specialises in creative schemes for young people.

During the event, Frederik and Mary announced the Crown Prince Couple's Awards will now be known as the Royal Couple's Awards - to signify their new royal status following their ascension in January.