Since Jeong eun kim was in office, earthshaking changes have taken place for the domestic matters in North Korea, gradually he takes the full control of the political situation. He becomes the real master of all states' rights, and it seems to have a tendency to centralization of power. Recently, North Korea is in a time of emergency whose political situation is relatively unstable, therefore, the China made clear regulation for transporting minerals for North Korea. In the April 5, 2016, the Ministry of Commerce of the People's Republic of China published an embargo for partial minerals for North Korea.

Announcement mainly mentioned that import coal and iron and iron ore from North Korean is prohibited. Unless the imports have been proven that they were not produce in North Korean and importers should provide information and application to provincial competent commercial section, after a series of proof then importers can import things. Secondly, it is not allowed to import gold ore, vanadium and titanium ore and rare minerals. There is also a ban on the export of aviation fuel, including aviation gasoline, naphtha type jet fuel, kerosene type jet fuel and kerosene rocket fuel to North Korean, unless it has passed through the UN Security Council Sanctions Committee.

With the rapid development of chinese economy, wolfram heater industry also continues to expand and grow, and since China has been joining the WTO, the export of this industry is gradually increased. Although the past two years, the export situation in China is not optimistic, but in accordance with relevant policy information issued by the State which did not make strict controls for tungsten heater, indicating that wolfram heater still has good investment prospects. What’s more, with the continuous improvement of the national scientific and technological strength, quality and quantity of tungsten heater has been improve, coupled with the reputation "Tungsten City", therefore, tungsten heat would remain the stable development of the state.

Recently, French Atomic Energy Commission (CEA) / Institute of magnetic confinement fusion (IRFM) researchers announced a good news: Institute of Plasma Physics, Chinese Academy of Sciences has made key progress in the development of two types of tungsten copper heat load (HHF) test module towards plasma components (W / Cu-PFC) test. Tungsten copper towards plasma component mainly refers to perforated tube. Tungsten copper perforated tube is one of the parts of vertical divertor target plates, and the divertor has been playing an significant role in magnetic confinement fusion reactor.

The main role of divertor is that the interaction between plasma and materials processing separated in two chambers and separates the resulting doping source and the main plasma. In general, it uses High heat load irradiation for the divertor properties testing, which is an important criteria to evaluate the quality of tungsten copper perforated tube. Tungsten copper not only has high melting point, high strength, low coefficient of thermal expansion, low sputter rate, low retention and excellent wear and corrosion resistance, etc., which is recognized as the most suitable for future nuclear fusion reactor plasma-facing materials. Tungsten copper perforated tube is first to drill on tungsten block, followed by brazing or hot isostatic pressing (HIP) block and other technology tungsten chromium zirconium copper pipe connected. Since it has symmetry in structure, can relief the thermal stress concentration and eliminate the stress point so that it can withstand high thermal loads irradiation.

Tungsten copper perforated tube fabricated by HIP has well combining face and without any obvious cracks, but the wall thickness of the circumferential unevenness in the HIP process of collapse and cracking phenomenon occurs. This time, the Chinese Academy of Sciences has made a major breakthrough in the manufacture of technology in the international community for the first time to achieve mass production of tungsten copper PFC, tungsten plasma interaction to carry out a comprehensive study under the conditions of long-pulse high parameters and provides an excellent platform. According to IREM researchers report relevant results: W / Cu perforated tube (Mono-block) No. 4 block modules withstand 1,200 times 10MW / m2 and 300 20MW / m2 radiation heat load; No. 5 tungsten block withstood 500 10MW / m2 and 500 20MW / m2 radiation heat load beyond the International Thermonuclear Experimental Reactor ITER to 20MW / m2 radiation heat load 300 requirements. In addition, W / Cu plates (Flat type) module FT1 to withstand 102 times 10MW / m2,102 times 15MW / m2 and 302 times 20MW / m2 radiation heat load; Tablet Module FT2 withstood 302 times 10MW / m2,102 times 15MW / m2 and 102 times 20MW / m2 radiation heat load. Irradiation results far beyond the flat module 5 MW / m2 in the ITER design requirements, refresh the W / Cu plate member is known recording HHF tests. This also proves that the advanced nature of the plasma connecting tungsten copper PFC technology to some extent.

A group of Chinese investors has offered €6 a share to buy Aixtron, valuing the German supplier of semiconductor equipment at about €670m, in the latest case of a mainland acquisition of a western industrial company.

Aixtron, which makes equipment used in LED lighting, said on Monday that it had agreed to a takeover by Grand Chip Investment, the German arm of Fujian Grand Chip Investment Fund. The Chinese group is controlled by Zhendong Liu, a Chinese businessman who owns 51 per cent of the fund. Xiamen Bohao Investment owns the remaining 49 per cent.

Under the terms of the agreement, Aixtron shareholders will be offered €6 in cash for an ordinary share, nearly 24 per cent more than Aixtron’s closing share price of €4.86 a share on Friday. The deal represents a 51 per cent premium over Aixtron’s three-month weighted average share price. Shares in the German equipment maker rose by more than 16 per cent on Monday after news of the agreement.

Aixtron said its legal domicile and headquarters would remain in Herzogenrath, Germany. It added that chief executive Martin Goetzeler and Bernd Schulte, chief operating officer, would remain in their jobs at the company.

Grand Chip Investment is expected to appoint four representatives to the Aixtron’s six-member supervisory board once the deal is complete. The takeover is still subject to shareholder approval and certain regulatory conditions being met.

Kim Schindelhauer, Aixtron chairman, said on Monday that the board members “fully support this transaction as it provides immediate value to our shareholders while also enabling Aixtron to bring their new products to market”.

The disappointing first-quarter results came just four months after the equipment maker suffered its worst day in 16 years upon losing its largest customer. Last December, Aixtron said Chinese client Sanan Optoelectronics had cancelled its orders, forcing Aixtron to cut its full-year sales guidance and sending shares down as much as 43 per cent in a single day.

Ammonium metatungstate used as the raw material of thin film substrate for semiconductor device will improve its property. Thin film grows on the substrate, the substrate material properties and characteristics of the substrate surface has a big impact on the film, because the film thickness is between nanometers to microns, the substrate surface is required for high flatness; The combination of film and the substrate is also a very important aspect, if the lattice mismatch, at the beginning of the film formation stage will form a long transition area. The wide application of semiconductor device makes ammonium metatungstate has a prospect market and is becoming an important material in emerging industry.