We have been engaged in producing and researching the sodium alginate, mannitol, and iodine for over 30 years. We can offer including sodium alginate food grade, sodium alginate industrial grade (especially for dyeing and printing factories), sodium alginate pharmaceutical grade (BP/USP conform), mannitol oral grade, and mannitol pharmaceutical grade (BP/USP conform). We can offer excellent quality and nice price. Hope we can have nice cooperation in future.