Walk in a park?
Ma is from the Xinjiang Uyghur Autonomous Region and founded Crazy Mountain Expedition Urumqi in 2013, believes there are reasons for this year's high number of climbers besides the earthquakes and avalanches of recent years.
"Some media portray the ascent as very easy and that the summit can be reached as long as you are rich. Some climbers misunderstand the purpose of extreme sports and see the ascent as a way to show off," said Ma, who is now leading some Chinese climbers from the southern route.
Kuntal Joisher, an Indian climber who reached the peak in 2016, shared a similar view. "Today, a lot people across the world think that anyone with no skills and experience can climb Qomolangma, that it's become a walk in the park," Joisher was quoted as saying by the Associated Press.
Some agencies also use low prices to attract clients. "We are sorry to see that some climbers come here as if this is just 'traveling.' They think that money can buy any service, some can't even wear gear properly and treat Sherpa as servants," Ma complained.
This trend has sparked concern over safety issues and the environmental damage caused by the increasing number of climbers, with some experienced climbers calling on the Nepali government to limit how many permits it issues.
The Nepali government proposed some limits in 2015, such as banning those younger than 18 and older than 75 from climb mountains 6,500 meters tall. But even these tame measures have never taken effect.
On May 6, an 85-year-old Nepali climber trying to become oldest person to top Qomolangma, died at the South Base Camp of a cardiac arrest.
"The Nepali government is unstable with many turnovers in key positions, this has prevented a reliable set of policies from being enforced," explained Arnette.
Nepal is renowned for adventure tourism due to its prominent peaks. Income from permits, hotels, guides and other related services bring millions of dollars to the country each year. The Qomolangma permit costs $11,000 per climber. According to the Nepali government, Qomolangma contributed 73 percent of the country's mountaineering sector's total income in 2015.
To reduce congestion, the Sherpas have tried to build two-way routes this year by installing ropes and ladders in some sections over the dreaded Khumbu Icefall, just above the base camp, Ma said. These routes will allow climbers to descent as others ascend, reducing congestion on the narrow paths up and down the mountain.
"The death rates are higher among these Sherpas, and they help the climbers accomplish their ascent dreams with their lives," she said. "Without them, we are nothing."
The quiet north
Though most climbers now approach from the southern, Nepali side, there have also been traffic jams on the northern, Chinese side.
"I suffered from several traffic jams while ascending the summit last year, but the wait time was just 10 to 20 minutes. The longer wait happened during the descent when I waited for about 40 minutes," said Han.
Besides permit numbers, there are also other reasons for the southern route's greater popularity. Some say that the southern route is easier, as it is more difficult to walk on the loose rocks which litter paths on the Chinese route.
Tashi said it's hard to compare the challenges. But he thinks the risk of natural disasters is larger on the southern side as it faces the direction of the wind.
"To avoid traffic jams, we've already formed a mechanism to have a meeting when we reach 8,300 meters and negotiate departure timetables for each team," Tashi said.
This year, he is leading a team of 24 Chinese clients up Qomolangma from the north. Together with guides and logistics staff, the team of over 80 members plans to ascend the summit in late May. Some teams in the south have already ascended the peak, he said.
Ma said that the mature helicopter rescue system and weather forecast ability of Nepal particularly attracts Western climbers.
Han said the higher requirements the Chinese government set for permits might also be a reason for the disparity in numbers, saying that the Nepali government gives permits to anyone who can pay the fee and has summitted 5,895 meter-high Mount Kilimanjaro; but China demands climbers must have already topped a peak that is 8,000 or more meters tall. There are only 14 mountains that meet this requirement, all of which are in Pakistan, China or Nepal.
Another key reason is the Chinese government's general caution about allowing foreigners to mountaineer in Tibet. China opened eight peaks to foreigners in 1980, including Qomolangma. But the northern route to Qomolangma has been closed repeatedly over the years for a variety of reasons, including worries that Tibetan separatists may stage a political protest on the famous peak.
Increasing Chinese climbers
Most of the climbers who attempt to master Qomolangma are either Westerners or Japanese.
But both Ma and Tashi say that the number of Chinese climbers looking to test themselves in one of the most unforgiving environments on earth is growing.
Tashi said that when his company opened registration for climbers looking to try the Tibet route in 2017, the quota was filled in just one day.
Most of the 24 clients who signed up come from China's richest cities, such as Beijing, Shanghai, Shenzhen and Guangzhou, he said. Last year, the number of Chinese clients was just 14.
"Before, the number was only two or three a year. In 2009, non-governmental Qomolangma mountaineering started to thrive," he said. "More and more Chinese are interested in trekking high mountains."
Ma said there will be over 40 Chinese climbers approaching the peak from Nepal this year. Spotting an opportunity, she opened a branch in Nepal in 2014 and hired full-time Sherpas.
The company Tashi works for is still only open to Chinese clients. "But we are planning to expand our client source and receive foreigners. Currently, we are training more professional multi-lingual guides," he said.
