About Us

About Us

Established in 2015 by Profit Royal Pharmaceutical Limited, NASK is the pioneer of revolutionizing and commercializing the use of nanofibers. Our inventions include NASK Nanofiber, a patented and award-winning innovative material.

Under our motto “Protect with Technology”, we believe that the power of advanced nanofibers has infinite possibilities. NASK maintains a strong focus on market-driven research and development process, as we strive to make commercially viable products using our technologies to benefit our society. This includes the application of our nanofiber on various Personal Protective Equipment (PPE) and healthcare products. NASK has recently implemented our cutting-edge nanofibers technology in respirators, which have been instrumental in safeguarding our community throughout the COVID-19 pandemic. The NASK Respirator is the world’s first nanofiber respirator which has been fully certified by the US National Institute for Occupational Safety & Health (NIOSH).

Our Vision and Mission

Our Vision and Mission


We are committed to enriching the body, mind and soul of all mankind through the development of high quality medical devices and personal health care products.


We have strong belief in 3 core values which are fundamentals of our corporate policy:

  • Serve our customers and meet market demands with innovative and high quality products and services through continuous improvement;
  • Strive for excellence in our products and services so that our brand becomes the first choice of customers;
  • Ensure our products will fully comply with international safety and quality standards and contribute to the wellness of all mankind, the environment and the society.

CEO's Message

‘‘It is our honour to be able to contribute to the betterment of the community.’’

- Sarinda Kwok
Co-founder and CEO

CEO's Message

Ultimately, our goal is to become a world-renowned nanofiber technology developer led by scientific and technological innovation. We have been paving the way for our entry into the global medical and healthcare sectors based on our pipeline of products. We commercially launched our first nanofiber technology applied product back in 2016 under the brand ‘‘NASK’’. In the past years, we were all too aware of the nature of our business, which includes the need for constant development to keep abreast of new technologies and methodologies so as to enhance our competitiveness and market position.

With ‘‘Protect with Technology’’ as our motivation, we aim to turn bottlenecks into breakthroughs with our development in nanofiber technology, we will strive for further progress while ensuring that our products not only comply with international safety and quality standards but also contribute to the environment and well-being of society as a whole. In the fight against the COVID-19 pandemic, as a medical device supplier in our home market Hong Kong, we strive to serve and support the healthcare professionals and staff who have devoted themselves to keeping our communities safe.

We also place significant efforts on setting up an environmental, social and governance (ESG) reporting system aligning with our value proposition to connect our ESG performance with operational plans and financial outcomes, including being a good steward of the environment and making progress on diversity, equity and inclusion. Through this approach, we are able to uphold our responsibilities to shareholders with respect to corporate sustainability while at the same time being responsible corporate citizen that delivers positive change and impact to society.




Profit Royal Pharmaceutical Limited was established.


As the leader in the development of NASK products, Profit Royal Pharmaceutical commenced research and development of the advanced Nanofiber technology with Nano and Advanced Materials Institute, which is designated by the Innovation and Technology Commission of the Hong Kong Government as a Research and Development Center for nanotechnology and advanced materials.

A dish

We won Silver Medal at the International Exhibition of Inventions of Geneva.


We won Merit Award at “Technology Start Up” Award organized by the Hong Kong Federation of Innovative Technologies and Manufacturing Industries.


We are committed to setting up a research and development base and manufacturing center in Hong Kong, NASK successfully invented the world’s first respirator with advanced bactericidal technology.


NASK Nanofiber Respirator (NIOSH N95) is the world’s first nanofiber respirator to be approved by the US National Institute for Occupational Safety & Health (NIOSH), earning a full certificate.


We won Gold Medal with Jury Commendation organized by International Exhibition of Inventions of Geneva.


We became the finalist in the annual R&D 100 Awards organized by the Office of Science, Department of Energy and Science, Unites States of America.


As the COVID-19 pandemic swept across the world, NASK supported the fight against the pandemic in Hong Kong by supplying BSI & NIOSH approved respirators to residents, public and private healthcare organizations, hospitals and government departments.


NASK nanofiber technology is patented in the United States of America, Japan, mainland China and Hong Kong.


Our management system has complied with the requirements of ISO 13485:2016/NS-EN ISO 13485:2016 in the Design, Manufacture, Sales and Distribution of surgical masks.

2022 Mar

Our R&D office is stationed in Hong Kong Science Park

2022 Sep

Our laboratory is stationed in Hong Kong Science Park

2022 Oct

We are stationed in Advanced Manufacturing Centre, Tseung Kwan O

2023 Jun

NASK nanofiber baby diaper launched

2023 Jun

NASK’s First Pop-Up Store Is Now Open at Star House, it is located at Healthy Square, 1/F, Star House, 3 Salisbury Road, Tsim Sha Tsui, Hong Kong

2023 Sep

Nask nanofiber adult diaper launched

2023 Oct

We have obtained Halal Certificate on 01 Oct 2023 for our NASK Nanofiber Respirator products

Company Structure