Veteran climbing outfits, fed up with what they regard as a lax attitude to safety on Nepal's southern flank of the 8,848 metre peak, are starting to shift operations to Everest's north side in Tibet.
"The south side is way too overcrowded with inexperienced people," Phil Crampton, a seasoned Everest hand who announced in January his company Altitude Junkies would shift to China, the third such outfit to abandon Nepal in recent years.
A growing chorus of foreign-led Everest operators in Nepal are demanding greater scrutiny of low-cost outfits that have mushroomed in recent years, offering cheap expeditions up the fabled summit.
These budget players are luring hordes of amateur climbers chasing the thrill of Everest but also risking death and injury, climbing experts say, warning that some expedition leaders are ill-equipped to tackle the peak.
Seven of the 10 climbers who died on Everest's south in the last two years were summiting with budget operators, according to information from the Himalayan Database.
Those pushing for change want to see permit numbers curbed and greater oversight of guides and operators.
Nepal introduced new laws in late December barring solo climbers, blind mountaineers and double amputees from scaling Everest, restrictions it said would make the peak safer.
But many mountaineers say the rules miss the mark.
"Nepal needs mountaineering rules and regulations. But for the operators, not for the climbers," said Furtenbach.
Nepal has been criticised as reluctant to introduce much-needed regulations because it fears harming an industry that spins money for the impoverished nation.
It is building a mountaineering training centre in Lhasa and plans to allow helicopter rescues on Everest's north from 2019, according to Chinese state media. Currently helicopter rescues are only possible in Nepal.
It also fixes ropes to Everest's summit at the beginning of each climbing season, an industry standard on most major peaks around the world -- but missing on the southern face in Nepal.
"China is addressing the issues in a way that Nepal has just struggled to... There is no system in place to actually enforce the rules," said Adrian Ballinger, who was the first operator to move exclusively to Everest's north in 2015.
But China's reputation took a hit when authorities closed the Tibetan side of Everest without warning in 2008, fearing protests ahead of the Beijing Olympics.
Many companies abandoned the north saying the political situation in Tibet was too unpredictable.
But that is changing due to what many in the industry see as a deteriorating situation in Nepal.
Ballinger expects more companies to move north in the coming years, especially as the Khumbu Icefall presents an increasingly avoidable danger on the south.
Nepal's tourism department, which oversees the mountaineering industry, defended its position on Everest safety.
"We cannot respond to every comment people make. Every year we have more people coming to climb Everest," said department head Dinesh Bhattarai.
For now Nepal remains the most popular choice -- just 155 foreign mountaineers attempted to summit Everest from Tibet last year.
Many Chinese adventurers also prefer Nepal as laws back home require they summit an 8,000 metre peak before trying Everest from Tibet.
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