naoki yamamoto is one of them. he is an expert on customer care with 30 years experience in japan. on top of his technological skills, yamamoto instructs staff on japanese-style customer service. >> reporter: sales staff test out their new skills by making unannounced visit to potential customers. komo ahmed runs a clothing factory that serves companies in the u.s. and europe. his sales have doubled over the past ten years. they encourage him to replace his used car with a new one. >> you get an advantage to buy the brand new vehicles. if you use it to go to workshop the next day. >> knowing i can buy this one is a lot of guarantees. this one is a -- good service also. >> thank you, sir. >> okay. thank you. >> reporter: the extra services eventually appeal to ahmed. he decided to consider buying a new car. >> see you soon, s. >> thank you. >> reporter: as more bangladeshis gets richer, businesses are racing to gain dominant position in this market. >>> and that will wrap up our bulletin. i'm patchari raksawong in bangkok. >>> some stormy weather is churning through waters off austr