◆ 1992 10, the construction team laid the first precast pile in the factory area, and the mesh board project officially started construction.
◆ 1992 65438+2 1, Yantai Electronic Screen Factory was established on the basis of "Yantai Electronic Screen Factory Preparation Office" (formerly "Yantai Electronic Screen Factory Preparation Office").
◆1On February 3, 1993, Yantai Lu Xin Electronic Network Board Co., Ltd. was formally established with the approval of Shandong Foreign Economic and Trade Commission (1May 1995 was renamed Yantai Zhenghai Electronic Network Board Co., Ltd.).
◆1995165438+1On October 20th, the first phase of Yantai Zhenghai Electronic Network Board Co., Ltd. was completed and put into operation.
On April 6, 2000, Yantai Zhenghai Magnetic Materials Co., Ltd. was formally established.
◆ On May 9, 2000, with the approval of Yantai Municipal People's Government, Yantai Electronic Network Board Factory was transformed into Yantai Zhenghai Group Co., Ltd. ..
On August 6th, 2000 at 9: 0018, Yantai Zhenghai Magnetic Materials Co., Ltd. laid the first precast pile at the construction site, marking the official start of the project construction.
◆ In September, 20065438+0, the third phase project of Zhenghai Net Board Company was successfully put into trial operation.
On August 5, 2002, Zhenghai magnetic material production line was completed. On September 6th, Magnetic Materials Company successfully produced N50 series high-performance NdFeB, ending the history that NdFeB manufacturers in China can only produce middle and low-grade products.
◆ In September 2002, Zhenghai Group was identified by the municipal government as the first batch of pilot units for restructuring large municipal enterprises in Yantai.
◆ On February 28th, 2003, the overall restructuring of Yantai Zhenghai Group Co., Ltd. was completed.
◆ June 365438+1October 365438+1October 2003 Yantai Zhenghai Electronic Network Board Co., Ltd. was changed to Yantai Zhenghai Electronic Network Board Co., Ltd.
20031October 22nd, 10, Yantai Zhenghai Biotechnology Co., Ltd. was established.
◆ On July 8, 2004, Yantai Zhenghai Group Co., Ltd. was changed to Zhenghai Group Co., Ltd.
◆ On March 28th, 2006, Yantai Zhenghai Pawn Co., Ltd. was established.
◆ In September 2006, Yantai Zhenghai Xingyuan Automobile Interior Parts Co., Ltd. was established with capital increase.
◆ On June 25th, 2007, 65438, Zhenghai Bio obtained the medical device registration certificate of the first product, Oral Repair Membrane.
◆ On June 28th, 2007, 165438+ the first mask-free product of Zhenghai Netboard Company-LCD TV speaker net cover was delivered in batch.
◆ From July to August, 2009, Zhenghai Bio's "Haifu" skin repair membrane products and "Haiao" biofilm products passed the examination and approval of the US Food and Drug Administration and went on the market one after another.