 A few months ago, I just bought a 3D printer for just 1,000 US dollars. I used it to print a missing legal block. In fact, people now start to believe they can print anything anywhere and not just toys. In the last five years, 3D printing has got enormous media attention. The statistics showing that in the past 10 years, there's an increase in worldwide revenue in billion dollars from 3D printing industry. You can see obvious upward trend after 2009. In Asia, Japan, and China are the two key players followed by Korea and Taiwan. One popular principle in 3D printing is complexity is free. In manufacturing, the more complicated the shape, the more it costs to make. But on a 3D printer, making a decorative ball will require no more cost, time, and skill than making a simple ball. For example, shape complexity. For manufacturers making a low bearing structure, they usually start from geometric shape and start to dance. When nature does the same, it applies the design using complex free form and cellular material such as bones. 3D printing makes shapes that until now were only possible in nature. The other is material complexity. I think some of you may find it difficult to buy in shoes that truly comfortable. It's partly due to uneven pressure when you contact shoe sole. Recent research provides solution for you to print the shoe sole with customized material mixture distribution that will lead to uniform pressure on the shoe sole. Functional complexity. For better heat transfer and cooling, this particular automobile component have two channels on the top merged inside with the channel to the side. This one piece is very light in weight and also multifunctional. It's almost impossible to make by traditional manufacturing until now. The other is customized products. 3D printing provides customization for medical implants, jewellery, and even clothing. It's revolutionizing prosthetics and allowing you to make limbs in much cheaper and faster scale. It's not just specialized prosthetics but a much more fashionable one. Always presented so far just tip of iceberg. The iceberg underwater may include many new business and new product that still beyond our imagination such as direct print of food, electronics, and human organs. Many details are still omitted but the future holds infinite possibility. This 3D printing iceberg may impact on all aspects of product life cycle from design manufacturing all the way to logistics. It will impact on existing industry and may generate totally new business. They definitely cause some concern on all these areas. Let's start from manufacturing. With 3D printing and made in China era, it's a specific manufacturing model relying on mass production, cheap labor, and global distribution. One possible scenario may be like this. A consumer or order design anywhere in the world online. Print out a receipt, work to a local 3D printing shop, and pick up the fresh made order. We're still far from that scenario. Yet it helps to unlock the design capability of this region. HKUSD now have collaboration with China Can't Even Arts on developing a course, bring together art and technology. And 3D printing will be the key. One day, made in China may be replaced by design in China. Logistics is one pillar industry in Hong Kong. If 3D printing ends made in China, maybe also means demise of logistics. It will not make economic sense to ship the raw material all the way to China through Hong Kong, assemble into final product, and ship back to US. On contrary, logistics industry responds quite positively to 3D printing. Amazon invades a tech initiative to integrate 3D printing into their business. Just this July, Amazon launches a specific website to sell customized 3D printed products. UPS also launches 3D printing service in San Diego, and more to come. One area that may be overlooked is quality control. Even industrial 3D printer usually cannot guarantee quality over prolonged production cycle, not to mention the personal 3D printer. Statistic quality control techniques cannot apply directly. Because such a small lab production does not have repeated measures of the same kind. Few months ago, I bought a 3D printer and imagine I would print anything. I print the Lego block, but I tell you, it didn't fit. Because the dimensional quality is still not comparable. HKUSD and USC now have joint research on 3D printing quality control and we believe quality will be the enabler of digital vision manufacturing error. Thank you.