Changsha Sandmonk Environmental Technology Co., Ltd.

A well-known international brand of reverse osmosis membranes, a leading enterprise of high-salinity RO membranes in China, a registered supplier of the United Nations, a donor enterprise of the United Nations Children's Fund, and a monthly donor of the Honghui Education Foundation.

Sandmonk (SANDMONK) is mainly engaged in the integration of the RO membrane industry chain and the research and development of core components. It has mastered the core technology for purifying high-salinity water and mainly cultivates the global high-salinity water regional market and the seawater desalination market. Its products are exported overseas and it has stable channels and popularity in many countries. Its brand HJC has become a well-known brand in more than 70 countries overseas.
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About the HJC brand story
HJC's Chinese name is Zhilan. It is a very common wildflower that grows in northwestern Hunan. Zhilan stays green all year round and has strong vitality, with clusters of small yellow flowers blooming in the middle of its leaf stalks. Its delicate fragrance spreads all around. This fragrance is neither as strong as that of roses, nor as sweet and cloying as that of osmanthus, nor as light as that of plum blossoms. But it is simple and elegant, refreshing and pleasant, with an intoxicating fragrance.

The great literary master Shen Congwen gladly wrote in the famous work "Taoyuan and Yuanzhou": "Zhicao grows in the small stream valleys, and it can still be seen everywhere today. This orchid plant takes root in crevices of cliffs, or spreads onto the branches of pine trees. Its long leaves flutter, and its flowers hang down in long strings, graceful and charming. Its flowers and leaves are softer in form than those of Jianlan, and its fragrance is lighter and more distant than that of Jianlan." These vivid and specific descriptions also implicitly express the author's deep affection for his hometown and for the magnificent mountains and rivers of the motherland.

The founder of the HJC brand lived as a child in a countryside where Zhilan flowers bloomed, but due to industrial water pollution, these flowers can no longer be seen today. Therefore, the founder initially founded HJC to solve the water pollution problem in his hometown.

HJC Vision
Turn the seawater that covers two-thirds of the Earth's surface into freshwater reserve resources, and explore water synthesis technology on alien planets.

HJC Mission
An innovator in high-salinity water technology

Values
1. Freedom is the driving force of innovation.
2. Top talent is the primary productive force.
3. Do not let customers lose a single copper coin.

Features of HJC

Four-layer reverse osmosis membrane sheet technology, pressure testing lasting up to ten thousand hours, suitable for 5000 ppm household high-salinity water environments and 40000 ppm high-salinity seawater environments.

Company benefits:
1. Working hours: 4.5 days per week (all employees rest on Wednesday afternoon, two days off), 6.5 hours per day (flexible working hours);
2. Parental gratitude allowance: employees' family members who have completed one year enjoy a gratitude allowance of 200 yuan/month, 400 yuan/month in the second year, and so on, up to a maximum of 2000 yuan/month (the company and the employee each pay half, directly transferred from salary to relatives' accounts);
3. Travel benefits: one overseas/domestic trip per year (an additional 5 days of paid leave + travel fund of 3500 yuan/person);
4. Other benefits: paid annual leave, an extra-long Spring Festival holiday (two weeks), seniority pay, five social insurances and one housing fund upon onboarding, meal allowance, transportation subsidy, wedding and childbirth gifts, birthday gifts, holiday benefits, afternoon tea (unlimited coffee, tea, and bread), and annual physical examination.