Qingdao Topwell Chemical Materials Co., Ltd.ti iṣeto ni ọdun 2014, jẹ olutaja alamọdaju ti o ṣiṣẹ ni iwadii, titaja ati pigmenti pataki ti adani ati awọ eyiti o ni ibatan pẹlu awọn iru ina- ina UV, nitosi ina infurarẹẹdi (IR), ina ti o han.

Awọn ọja akọkọ wa pẹlu,

1. UV/IR Fuluorisenti pigment ati dai,

2.Thermochromic pigment,

3. Nitosi infurarẹẹdi ti o nfa awọ,

4.Perylene pigmenti,

5. Han ina kókó dai

6. Photochromic dai ati pigmenti

7.Urolitini A