Prince William Makes Solo Visit to Northern England as King Charles Resumes Public Duties amid Cancer

William headed north to see one of his Earthshot Prize finalists and support a mental health charity

Prince William is stepping out for two of his favorite causes.

On the day that his father King Charles resumed public-facing duties for the first time since he revealed his cancer diagnosis in February, the Prince of Wales, 41, headed to the north-east of England for events highlighting the climate crisis and tackling mental health.

William, who is working solo while his wife Kate Middleton is undergoing treatment for cancer, began the morning with a visit to celebrate the work of Low Carbon Materials, a finalist for his environmental Earthshot Prize.

The company based in Seaham, County Durham makes cutting-edge, carbon-negative products. While visiting, William heard their reflections on how being nominated for the Prize has boosted their company, which was set up by three Material Science PhD students with the vision of becoming a world leader in low-carbon and environmentally friendly construction materials.

Related: Prince William Hears How Earthshot Prize-Winning Idea Is Coming to U.K.'s Most Famous Venues in Latest Outing

The second visit for the prince (who celebrated his thirteenth wedding anniversary with Princess Kate on April 29) was to open James’ Place Newcastle, in the city of Newcastle-Upon-Tyne. The charity provides a crucial lifeline for men experiencing suicidal thoughts and is the latest of several centers run by the charity that William has opened.

The issue of men's suicide also forms part of William's wider mental health campaigning, and is something he's taken a leading role in helping to raise awareness of.

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James' Place was started by Clare Milford Haven and Nick Wentworth-Stanley following the death of their son James in 2006. Suicide is the single leading cause of death for men under 35 in the U.K., with men three times more likely to take their own lives than women. The organization has treated over 2,300 suicidal men, with James’ Place Newcastle helping 140 men since it opened its doors in January. Its team of professionals gets referrals from emergency departments, family doctors, student counseling services and community services who come into contact with men suffering a crisis.

The new center — the third started by James' Place — is clearly needed in the area as Newcastle has some of the highest rates of suicide in England. During his time at the center, William met with former clients and staff to hear how the charity supports them.

The former air ambulance pilot has spoken of his own experience of dealing with male suicide when he met with British emergency service workers who find themselves tackling the issue far too often. One of his first calls in his job at East Anglia's air ambulance service was to a young man who had died by suicide.

"He is concerned that men sometimes consider themselves too strong to ask for help," a palace spokeswoman told PEOPLE at the time. "He wants to see what he can do to help encourage men to ask for help. "

Related: King Charles to Return to Public Duties as Palace Shares Major Update on His Health amid Cancer Treatment

The Prince of Wales recently resumed public duties for the first time since Princess Kate announced that she is undergoing treatment for cancer. The Princess of Wales announced the news in a self-written speech released via video on March 22, where she shared that post-operative tests following her abdominal surgery "found cancer had been present."

His outing came as his father King Charles, 75, headed out with Queen Camilla, 76, to visit a cancer specialist hospital in central London to highlight the groundbreaking research being done in the area and to talk to staff and patients.

If you or someone you know is considering suicide, please contact the 988 Suicide and Crisis Lifeline by dialing 988, text "STRENGTH" to the Crisis Text Line at 741741 or go to 988lifeline.org.

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