Stock markets in the Chinese mainland saw a decline on Friday as investors continued to take profits in fourth generation (4G) technology-related stocks.

The benchmark Shanghai Composite Index was down 9.96 points or 0.44 percent to close at 2,237.11 points on Friday, ending the week 16.6 points or 0.75 percent higher than the previous Friday.

The Shenzhen Component Index fell by 34.11 points or 0.40 percent to 8,526.68 points on Friday, but the index was 15.93 points or 0.19 percent lower than on November 29.

Combined turnover on the two bourses on Friday was 188.9 billion yuan ($31.06 billion), down from Thursday's 222.91 billion yuan.

The announcement of the resumption of initial public offerings    (IPOs) after a break of more than a year prompted a decline in stock markets in the first week of December. The China Securities Regulatory Commission said on November 30 that IPOs will resume as early as January, with more than 750 companies waiting for a listing.

The announcement prompted profit-taking in shares that had rallied recently, including the media and technology sectors.

ChiNext, China's NASDAQ-style board for high-tech and fast-growing start-ups listed in Shenzhen, was hit hardest last week as investors were concerned that the resumption of IPOs would result in funds being diverted away from ChiNext-listed companies.

On December 2, the index plummeted by 8.26 percent, the biggest one-day decline on record. 

However, brokerages saw a weekly gain from the IPO news, although most securities firms retreated on Friday. Leading stock brokerage China Merchants Securities Co, ended the week with a gain of 14.63 percent to 12.54 yuan from the previous Friday.

On Friday, stocks linked to 4G technology continued to fall as investors took profits in companies that had seen a boost in share prices after the central government issued licenses for the new 4G wireless networks on Wednesday afternoon. 

Shares in China Unicom, the country's second-largest telecom company by number of subscribers, fell by 1.17 percent to 3.39 yuan on Friday. Guangdong Eastone Century Technology Co, a network technology services provider, saw its shares fall by 6.48 percent to 14.73 yuan.

ChiNext saw a rise of 4.72 points or 0.39 percent to 1,206.78 points at the close on Friday, ending the week with a loss of 160.05 points or 11.71 percent from the previous Friday.