. >> tajmim city is known for making ceramics and tiles. but these days output of its products is only a fraction of what it was in its peak. this man owns a factory with five employ owes, he began the business producing tiles, but his desire to expand his product line led him to a new kind of brick, his main material is waste left over from the pottery making process, the kind of material that usually gets thrown away. the material is mixed with special chemicals and cement. then it's extruded under pressure, then it's transformed into bricks, all without fire, they are just as strong as conventional bricks, but much cheaper. these bricks became popular in japan, but sales growth has slowed so he began looking for new opportunities. >> the brick market in japan is limited, but bricks are an important building material. in other countries, bricks are an overwhelmingly popular material. the market is huge. >> he turned his attention to bangladesh which has a population of 160 million. in the capital dhaka, bricks account for 40% of the mater