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Legal Notice, Privacy Policy and Cookies

In compliance with the provisions of Law 34/2002 of July 11, on Information Society Services and Electronic Commerce (LSSICE), the following general information is provided for the oh2.es website:

Company Name: BYDH Proyectos y Adquisiciones, SL
Tax ID No.: B16423444
Registration Details: Registered in the Regional Government of Asturias, Volume 4591, Folio 34, Sheet AS-62289
Email: [email protected]


1. Purpose of the Website

The purpose of this website is to provide information related to the Euro-American Green Hydrogen Event, which will take place in January 2026 in the city of Oviedo and is organized by BYDH.


2. Website Terms of Use

By merely accessing the website, the user accepts these terms and conditions. Access to and subsequent use of this website implies express, full, and unreserved acceptance of these terms and conditions.


2.1 Intellectual and Industrial Property

This website, including but not limited to its programming, editing, compilation, designs, logos, text and/or graphics, databases, and trademarks, are the property of the website owner and are protected by national and international intellectual and industrial property laws. Access to the website does not grant you any ownership rights over them.

The content, text, photographs, designs, logos, images, source codes, and, in general, any intellectual creation existing on this site, as well as the site itself as a whole, are protected as copyright by intellectual property laws.

BYDH owns the elements comprising the website’s graphic design, menus, navigation buttons, HTML code, text, images, textures, graphics, and any other content on the website, or, in any case, has the corresponding authorization to use said elements. The content displayed on the website may not be reproduced in whole or in part, transmitted, or recorded by any information retrieval system, in any form or by any means, without prior written authorization from BYDH. However, BYDH permits the creation of links to its web pages from other websites without requiring express consent and without signing an agreement or contract to enable a reciprocal link, which will be at BYDH’s discretion or by prior agreement between the parties. We require that no content on our website be copied, duplicated, transmitted, sold, stored, or used without the prior express written consent of BYDH.

We maintain constant monitoring to prevent the associated and linked content from containing any malicious software (“Malaware”) or computer viruses, or any security breaches to the data stored herein. However, BYDH, its collaborators, affiliates, employees, and authorized personnel will not be liable under any circumstances for any damages, losses, expenses, or claims of any kind, whether arising from information acquired or accessed through any file or page of the website, from the use of the website itself, or from any computer virus.


2.2 Protection of personal data

In accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data (General Data Protection Regulation or GDPR), the personal data you provide to us through the contact methods we provide will be processed by BYDH Proyectos y Adquisiciones, SL, Data Controller. Data Protection Officer: Eusebio Fernández. Email: [email protected]

You may exercise the rights set out below by sending an email to BYDH, indicated at the beginning of this section.

  • Right to access personal data: You may request information from the company about whether it is processing your data and what processing it is carrying out.
  • Right to request rectification of your data if it is incorrect or its deletion if it is no longer necessary for the purpose for which it was collected.
  • Right to request restriction of the processing of your data.
  • Right to object to the processing of your data.
  • Right to data portability to a new data controller.

If you believe that the company has violated your right to data protection, you may file a complaint with the Spanish Data Protection Agency (www.agpd.es).


2.3 Cookies

What are cookies and why do we use them on the BYDH websites?
A cookie is a file that is downloaded to a user’s device when accessing certain web pages. It stores and retrieves information about the user’s browsing habits.

Cookies allow a website, among other things, to store and retrieve information about the user’s habits and settings. At BYDH, we use them to personalize the experience on our websites, identify and remember user preferences, including their registration, and facilitate navigation. We emphasize that the use of cookies on our websites does not provide personal data about the user, so they remain anonymous to us.

Each user can configure their browser to not accept the use of cookies. In this case, the personalization of the experience would not apply, although they could still access the content on our websites normally.

For more information about what cookies are and how they work, we recommend reading the Wikipedia page on Cookies.

What types of cookies are used on BYDH websites?

Cookies, depending on their duration, can be divided into session or permanent cookies. The former expire when the User closes the browser. The latter expire depending on when the purpose for which they are used is fulfilled (for example, to keep the User logged in on BYDH websites) or when they are manually deleted.

Additionally, depending on their purpose, cookies can be classified as follows:

PERFORMANCE COOKIES: This type of cookie remembers your preferences for the tools found in the Services, so you do not have to reconfigure the service each time you visit. Examples include:

Volume settings for video or audio players.
The video streaming speeds supported by your browser.
GEO-LOCATION COOKIES: These Cookies are used to determine the country in which the User is located when a Service is requested. This Cookie is completely anonymous and is only used to help target content to the User’s location.

LOGGING COOKIES: Logging Cookies are generated once the User has registered or subsequently opened a session, and are used to identify the User in the Services for the following purposes:

To keep the User identified so that, if they close a Service, their browser, or their computer and at another time or on another day re-enter that Service, they will continue to be identified, thus facilitating navigation without having to re-identify themselves. This functionality can be disabled if the User clicks the “disconnect” or “log out” option. This Cookie is deleted, and the next time they access the Service, the User will have to log in to be identified.

To check whether the User is authorized to access certain Services, for example, to participate in a contest.

Additionally, some Services may use connectors with social networks such as Facebook or Twitter. When the User registers for a Service with social network credentials, they authorize the social network to store a persistent Cookie that remembers their identity and grants them access to the Services until it expires. The User can delete this Cookie and revoke access to the Services through social networks by updating their preferences on the specified social network.

ANALYTICS COOKIES: Each time a User visits a Service, a tool from a third-party provider (Google Analytics and similar providers, which may be added to this list if they change from the current ones) generates an analytics Cookie on the User’s computer. This Cookie, which is only generated during the visit, will be used on future visits to BYDH Services to anonymously identify the visitor. The main objectives pursued are:

  • To allow the anonymous identification of browsing Users through the “Cookie” (it identifies browsers and devices, not people) and therefore to approximate the number of visitors and their trends over time.
  • To anonymously identify the most visited content and, therefore, the most attractive to Users.
  • To determine whether the accessing User is new or a repeat visitor.

Important: Unless the User decides to register on a BYDH, SL website, the “Cookie” will never be associated with any personal data that could identify them. These Cookies will only be used for statistical purposes to help optimize the User experience on the site.

More information about the privacy policy of these analytics tools can be found at:

Google Analytics (http://www.google.es/intl/es/analytics/privacyoverview.html)


How to disable cookies in your browser?
Most browsers currently allow users to configure whether and which cookies they accept. These settings are usually found in the “Options” or “Preferences” menu of your browser.

These are the instructions for configuring cookies in the main browsers:

Chrome: Settings -> Show advanced options -> Privacy -> Content settings.
For more information, you can consult Google support or your browser’s Help.
Firefox: Tools -> Options -> Privacy -> History -> Custom settings.
For more information, you can consult Mozilla support or your browser’s Help.
Internet Explorer: Tools -> Internet Options -> Privacy -> Settings.
For more information, you can consult Microsoft support or your browser’s Help.
Safari: Preferences -> Security.
For more information, you can consult Apple support or your browser’s Help.


2.4 Right of withdrawal for consumers and users

In the event of withdrawal on your part, we will refund all payments received from you, including delivery costs (with the exception of additional costs resulting from your choice of a delivery method other than the least expensive standard delivery method we offer) or services contracted from third parties to deliver the agreed service, without undue delay and, in any case, no later than 14 calendar days from the date on which we are informed of your decision to withdraw from this contract. We will proceed with this refund using the same payment method used by you for the initial transaction, unless you have expressly agreed otherwise; in any case, you will not incur any costs as a result of the refund.

You must bear the direct cost of returning the goods or services.

Exceptions to the Right of Withdrawal

  • The right of withdrawal does not apply to contracts relating to:
  • The supply of custom developments that have begun.
  • The supply of specific services for the project to be carried out or for which an accepted and signed contract has been reached.


2.5 Links to Third-Party Websites

In the event of links to third-party websites, we inform the user that they will be governed by the terms and conditions of said websites and that BYDH assumes no responsibility for the content accessed through said links.

Through this section, we want to inform users of the data usage and processing policies we implement on the social media platforms where we operate (Twitter, LinkedIn, and Facebook). When a user follows our company, they authorize us to use their personal data solely on these platforms for the management of our page or profile and for the two-way communications we maintain with our followers through chat, messages, or other means of communication permitted by each social media platform, both now and in the future.

However, this processing will be subject to the privacy policies of these social media platforms. By becoming a follower, we will have access to the list of members or followers who have joined us. We also want to inform you that when a user becomes a follower, the news we publish will also appear on their wall, and if they comment on ours, their comment, profile name, and, where applicable, the photo they have on it will be accessible to other followers. In any case, the user is responsible for their use of the social media platform.

We will not use users’ personal data for purposes other than those indicated in the previous paragraphs, nor to send them information through an environment other than the social network.

Regarding your data protection rights, you should contact the social network provider if you wish to exercise any of these rights. However, you may unsubscribe from our page or profile at any time.


2.6 Modifications to this Legal Notice and Privacy Policy

BYDH reserves the right to make, at any time and without prior notice, modifications and updates to the information contained on the website, its configuration and presentation, and the conditions of access when it deems appropriate.