A deconstruction investigation of Huawei's most recent high-end phone revealed that it has more Chinese suppliers for components including an upgraded chip processor and new flash memory storage chip, demonstrating the country's progress toward technological self-sufficiency.

When online tech repair company iFixit and consulting firm TechSearch International opened up Huawei Technologies' Pura 70 Pro for Reuters, they discovered multiple Chinese-sourced parts as well as a NAND memory chip that they said was probably packaged by the Chinese telecom equipment maker's in-house chip unit HiSilicon.

These results have never been published before.

Rivals and American politicians are closely observing Huawei's comeback in the high-end smartphone market following four years of U.S. sanctions, as it has come to represent mounting trade tensions between the two countries as well as China's efforts to become self-sufficient in technology.

The companies also discovered that the Kirin 9010, a sophisticated processing chipset manufactured by Huawei, powers the Pura 70 phones. This chipset is probably only a little better version of the advanced processor, which is also created in China, and is utilized by Huawei in its Mate 60 series.

Shahram Mokhtari, lead disassembly specialist at iFixit, stated, "We'd say the domestic component usage is high, and definitely higher than in the Mate 60, even though we cannot provide an exact percentage."

"This is about self-sufficiency, all of this, everything you see when you open up a smartphone and see whatever are made by Chinese manufacturers, this is all about self-sufficiency," Mokhtari stated.

Huawei opted not to respond

The four smartphone models of the Pura 70 series were released by Huawei in late April, and they sold out very fast. Analysts predict that Apple, the producer of the iPhone, will lose further market share, and Washington lawmakers are debating the effectiveness of US restrictions on the massive manufacturer of telecom equipment.