By December it had already hired 108 workers and had 50 Chinese staff on the ground training them. It will be supplying steel to, among others, Chinese construction companies around the city.
Miao Wenwei, the 42-year-old general manager, says there is a need for higher-grade steel in Ethiopia.
"The quality of the locally made steel is not good. It is like the quality in China in the 1980s," he says.
Apart from the market opportunity, lower labor costs make the margins more comfortable. "Labor is cheap. In China you have to pay workers between 160 yuan ($26) and 200 yuan a day. Here it is about 20 yuan per worker," he says.
The Eastern Industry Zone, where 11 factories are currently located, has been a magnet for a lot of Chinese investment. It is one of the largest industrial parks of its kind in Africa.
The park is a combined Chinese-Ethiopian government project but has been developed and operated by the private Jiangsu Qiyuan Group, based in Suzhou, Jiangsu province.
It is not just aimed at Chinese companies. Unilever NV, the Anglo-Dutch consumer goods giant, is set to open a 5,000 sq m shampoo factory in June. A Vietnamese textile company is also planning a base.
Lu Qixin, deputy director of the site, with his trademark big Versace dark glasses, is a familiar figure as he drives around the park.
He says the whole project has been a major commitment and the company has already invested $80 million in the site.
"It is draining on the finances. Currently, we are doing this with my brother's money. We are looking to get a subsidy this year from the Chinese Ministry of Commerce," he says.
Nonetheless, the company wants to further develop the site and now has planning permission for a five-star hotel and a residential and retail development complex adjacent to it. It should be completed by 2017.
"We will do the residential area first so when Chinese companies send people here there will be somewhere for them to stay," he adds.
Amid all this development the lives of many Ethiopians are being transformed.
Mula Warsa, 20, was one of Huajian's first employees and is now manager of the packing department, which involves supervising 20 people and earns 3,000 Ethiopian birr ($150) a month. She was hired straight from technical college where she studied footwear production.
Speaking after lunch at the impressive canteen at the factory, where workers eat either in the section serving Chinese food or the one with local dishes, says there is a good working relationship between the Chinese and Ethiopian staff. "There may be cultural differences but these do not affect how we work together," she says.